Female pandas usually have one or two babies________.A. at timesB. at onceC. at all timesD. at a time

Which of the following statements were correct around the time of the American Revolution? ()A. The American has the mixed blood of Europeans or their descendants.B. The American had the mixed blood of Europeans with American Indians.C. The American had Td.he mixed blood of Europeans with black.D. The American had the blood of the English and their descendants only.

You __________ all those calculations! We have a computer to do that sort of thing.A. needn't have doneB. must not have doneC. shouldn' t have doneD. can not have done

As a driver,Mike had to take his (         ) of responsibility for the accident.A. sectionB. shareC. roleD. duty

（）against nature for a mother to hurt her own child.A. She isB. That isC. What isD. It is

多选题（每题4分） （多选）Which of the following sentences are grammatically correct? A. I have lived here for 5 years. B. She has bought a new car last week. C. They have been studying since morning. D. He has gone to Paris yesterday.

阅读理解.Passage 1It was very cold last Sunday.Paul and his friends Allen,Bill and Betty went to the lake after breakfast.They began to skate on the ice.Paul skated better than his three friends.He skated fast and didn’t know a piece of ice was broken.He fell into the water.His friends were afraid and called for help.Just then two workers walked there and heard them.They ran there quickly and helped the boy come out of the water.Then they took him to a hospital.Paul and his parents thanked them very much.4/261.When did the children go skating?A.fter breakfast.B.efore supper.C.After lunch.D.At lunch.2.How many children skated on the lake?A.Three.B.Four.C.Five.D.Six.3.Who skated best of all the children?A.llen did.B.Paul did.C.Bill did.D.Worker did.4.Why did Paul fall into the water?A.Because he skated fast.B.ecause he was not good at skating.C.Because he didn’t know the ice there was broken.D.Because he skated slow.5.Who helped Paul?A.His friends.B.His parents.C.Two workers.D.Betty..

This is one of the best films ____。（ ）A. that have been shown this yearB. that have shownC. that has been shown this yearD. that you talked

Generally, there are various ways to start an essay, including（ ）.A. stating your thesis briefly and directlyB. posing a question related to your subject and then answer itC. presenting your thesis as a recent discovery or revelationD. opening with a riddle, joke, or humorous quotation, and show how it reveals something about your subjectE. sharing with your reader something engaging, like an anecdote

Use the right wordFill in the blanks with the words given below, changing the form if necessary. Fill in each blank with one word only.| habit | importance | electric ||------------|------------|----------|| involve | recent | tradition|| celebrate | measure | cheer |1. The good news got ___ from the audience.2. These factories will take every possible ___ to reduce pollution (减少污染).3. Waterfalls (瀑布) can be used to produce ___ power.4. Can you come to the party to ___ Jim's graduation?5. It's a(n) ___ to sing "Jingle Bells" at Christmas.6. These classes help members learn how to change their eating ___.7. In some way, he ___ several of his friends in the trouble.8. In the end, he realized the ___ of foreign languages.

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