—What a pity! Their experiment is a failure.

—They ________ better under more favorable conditions.

A. should have done B. could have done

C. must have done D. may have done

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：2016屆高考試卷分項版解析專題01英語試卷（解析版） 題型：單項填空

Her_____ for writing was a desire for women to get the right to higher education.

A. motivation B. qualification

C. talent D. technique

查看答案和解析>>

科目：高中英語 來源：2016屆高考試卷分項版解析專題02英語試卷（解析版） 題型：單項填空

I think Mrs. Stark could be _______ between 50 and 60 years of age.

A. anywhere B. anybody

C. anyhow D. anything

查看答案和解析>>

科目：高中英語 來源：2016屆高考一輪復(fù)習(xí)新人教版必修5第3單元練習(xí)英語試卷（解析版） 題型：單項填空

International communications have led to ________.

A. using English widely. B. English having used widely.

C. English to be used widely. D. English being used widely

查看答案和解析>>

科目：高中英語 來源：2016屆高考一輪復(fù)習(xí)新人教版必修5第2單元練習(xí)英語試卷（解析版） 題型：單項填空

China Hengda＿well have won the football match, but I don't know because I wasn't there.

A. could B. may

C. should D. must

查看答案和解析>>

科目：高中英語 來源：2016屆高考試卷分項版解析專題08英語試卷（解析版） 題型：單項填空

Many countries are now setting up national parks ________ animals and plants can be protected.

A. when B. which

C. whose D. where

查看答案和解析>>

科目：高中英語 來源：2016屆高考試卷分項版解析專題08英語試卷（解析版） 題型：單項填空

____is often the case with children, Amy was better by the time the doctor arrived.

A. It B. That

C. What D. As

查看答案和解析>>

科目：高中英語 來源：2016屆高考試卷分項版解析專題07英語試卷（解析版） 題型：單項填空

When I was little, my mother used to sit by my bed, ________ me stories till I fell asleep.

A．having told B．telling

C．told D．to tell

查看答案和解析>>

科目：高中英語 來源：2016屆高考試卷分項版解析專題07英語試卷（解析版） 題型：單項填空

____ in the poorest area of Glasgow, he had a long, hard road to becoming a football star.

A. Being raised B. Raising

C. Raised D. To raise

查看答案和解析>>

同步練習(xí)冊答案