-Must I do the project on my own?

-No, you____.You can work with your classmates.

A. needn’t B. can’t C. shouldn’t D. mustn’t

A 【解析】句意：——我必須自己做這個項目嗎？——不，你不需要。你可以和你的同學(xué)一起工作。A. needn’t不必；B. can’t 不能；C. shouldn’t不應(yīng)該；D. mustn’t禁止，千萬別。以must開頭的一般疑問句，以must開頭的疑問句，肯定回答用must，而否定回答則用needn’t或don’t have to，意為“不需要、不必”，而不能用mustn’t，故選A。

Michael_________in a school in Yunnan from February to June next year.

A. teach B. taught C. will teach D. was teaching

C 【解析】句意：米迦勒將于明年二月至六月在云南的一所學(xué)校任教。根據(jù)時間狀語next year判斷，句子的時態(tài)為一般將來時態(tài)，故答案為C。

Mr Black walked around and offered help____we were doing an experiment.

A. while B. although C. until D. unless

A 【解析】句意：布萊克先生在我們做實驗的時候在我們身邊走來走去提供幫助。A. while正當(dāng)……時候；B. although盡管；C. until到……為止；D. unless除非，如果不。while與進(jìn)行時態(tài)連用，故答案為A。

Old Mr. Green doesn't feel_____because some students visit him regularly.

A. sadly B. gently C. lonely D. angrily

C 【解析】句意：格林老先生不感到孤獨，因為一些學(xué)生定期來看他。A. sadly悲傷地；B. gently溫柔地；C. lonely孤單地；D. angrily生氣地。根據(jù)后面的句子“because some students visit him regularly.”可知，因為有學(xué)生而不再感到孤單，故答案為C。

The film Operation Red Sea_____a lot of praise since its first show months ago.

A. wins B. win C. will win D. has won

D 【解析】句意：紅海影業(yè)自幾個月前首次演出以來，贏得了很多好評。since its first show months ago是表示到目前為止的時間段，用在現(xiàn)在完成時態(tài)的句子中。故答案為D。

Mr. Zhou is good at cooking and he has decided______his own restaurant.

A. open B. opened C. to open D. opening

C 【解析】句意：周先生擅長烹飪，他決定開一家屬于自己的餐館。decide to do sth.決定去做某事，固定搭配。故答案為C。

The debate on whether to keep pets_____forty minutes yesterday afternoon.

A. last B. lasted C. will last D. has lasted

B 【解析】句意：關(guān)于是否養(yǎng)寵物的爭論昨天下午持續(xù)了四十分鐘。根據(jù) yesterday afternoon 可知此處時態(tài)應(yīng)為一般過去時。故答案為B。

Sue practises______the violin hard and often gives wonderful performances.

A. play B. played C. to play D. playing

D 【解析】句意：蘇練習(xí)小提琴很刻苦，經(jīng)常會有一些精彩的表演。practice doing sth.練習(xí)做某事。故答案為D。

The self-diving plane proves to be useful in many ways.___smart invention it is!

A. What B. What a C. What an D. How

B 【解析】句意：自潛水飛機(jī)在很多方面都有用途。多么聰明的發(fā)明��！感嘆句一般有兩種結(jié)構(gòu)：What +(a/an)+形容詞+名詞+主語+謂語！名詞是復(fù)數(shù)或不可數(shù)名詞，不加a/an。How+形容詞+主語+謂語！本句的中心詞invention為可數(shù)名詞單數(shù)形式，應(yīng)該用what來引導(dǎo)，smart以輔音音素開頭，前面應(yīng)該用不定冠詞a，故答案為B。

（題文）Please______the rubbish into different litter bins according to the signs.

A. puts B. put C. putting D. to put

B 【解析】 句意：請根據(jù)標(biāo)志牌將垃圾放入不同的垃圾箱中。祈使句以動詞原形開頭，故答案為B。