【題目】Scientists say it will be five or six years ________ it is possible to test this medicine on humans．

A．after B．before C．since D．When

【答案】B

【解析】

試題分析：A.after在...之后 B.before在...之前 C.因?yàn)?/span> D.when引導(dǎo)時(shí)間狀語從句。句意：科學(xué)家說將這種藥品應(yīng)用于人類身上的可能性將會(huì)在5—6年內(nèi)實(shí)現(xiàn)。

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：

【題目】I ______ to go to Hawaii today, but when the fortune-teller warned me not to travel, I postponed the trip.

A.was intendingB.was intended

C.would intendD.had intended

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】Some people think it ________ privilege to study abroad, but it doesn't make _______ sense if you go when you even cannot look after yourself.

A. a; / B. a; the C. the; / D. the; a

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】—He tried to explain it to me but I just couldn't understand.Do you?

—________.

A. Not likely B. Not certainly

C. Not really D. Not cleverly

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】-- I am afraid I can’t help you with your project. I ________ a model these days.

-- It doesn’t matter. I will finish it by myself.

A. make B. will be making C. am making D. have made

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】-- Tom says he is too tired to go on.

-- He can’t. He ________ for an hour.

A. had worked B. has just worked

C. just worked D. has only been working

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】Try to be independent, for your parents can't do ________ for you all your life.

A. something B. nothing

C. everything D. anything

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】My uncle was poor but he _______ often dress up as a rich man

A. would B. might C. should D. Must

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】 ------We want someone to design the new art museum for us.

------______the young fellow have a try?

A. May B. Shall C. Will D. Need

查看答案和解析>>

同步練習(xí)冊(cè)答案