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

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

【答案】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……為止;D. unless除非,如果不。while與進行時態(tài)連用,故答案為A。

練習(xí)冊系列答案
相關(guān)習(xí)題

科目:初中英語 來源: 題型:

【題目】_______ talk face to face without wearing a mask.

A.NoB.Don’tC.Not

查看答案和解析>>

科目:初中英語 來源: 題型:

【題目】—The meat is________delicious. —Yes, but don’t eat________.

A. very; much too B. much too; much C. so; too much D. too; much too

查看答案和解析>>

科目:初中英語 來源: 題型:

【題目】—I can’t find my cat, Tina.

— Don’t worry. You can call Mr. Smith ________ 982-0934 and ask him ________ help.

A.with; forB.in; withC.at; for

查看答案和解析>>

科目:初中英語 來源: 題型:

【題目】— Is the ID card ______?

—No, it’s not. Grace is there. You can go and ask ______.

A.yours; herB.your; hersC.your; me

查看答案和解析>>

科目:初中英語 來源: 題型:

【題目】— What time is it now?

— Sorry, I don’t have a ________. But I think it’s 10:00 now.

A.ringB.watchC.dictionary

查看答案和解析>>

科目:初中英語 來源: 題型:

【題目】Don't play games on the computer all day, It's ______ to your eyes.

A. harmful

B. useful

C. helpful

D. thankful

查看答案和解析>>

科目:初中英語 來源: 題型:

【題目】—If you don’t know the date, please look at the ________.

—OK, Mrs. Green.

A.stampB.calendarC.book

查看答案和解析>>

科目:初中英語 來源: 題型:

【題目】I am looking forward to________the interesting new film.

A.to seeB.seeC.seesD.seeing

查看答案和解析>>

同步練習(xí)冊答案