【題目】Potatoes turn green when ________ to light.
A.exposed
B.are exposed
C.being exposed
D.to be exposed

【答案】A
【解析】考查非謂語動詞。be exposed to遭受，暴露于…，這里的exposed可以看作 when they are exposed to the light的省略。因為句子中有when,while等這些詞時，從句可以省略與主句相同的主語和be動詞。是使顯露的意思。故選A。

練習冊系列答案
相關(guān)習題

科目：高中英語 來源： 題型：

【題目】Success is not final and failure is not fatal; it is the courage to continue that ___________.

A. deserves B. survives C. counts D. functions

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】A broad smile spread_____ Jack’s face when he eventually gained a scholarship.

A. across B. through C. at D. in

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】 --I hear that there was a terrible crash in the subway in Shanghai the other day.

--Yes, _____ news came as _____ shock to all of us.

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

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】The manager of the company asked ________.

A. What is the hero’s name.

B. what the hero’s name is

C. What was the hero’s name.

D. what the hero’s name was

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】Nothing but several glasses ______ bought by my father the day before yesterday.

A．was B．were C．have been D．would be

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】Onethird of the country ______ covered with trees and the majority of the citizens ______ black people.

A．is; are B．is; is

C．a(chǎn)re; are D．a(chǎn)re; is

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】To keep healthy, my father________jogging as a regular form of exercise after work.
A.took up
B.turned up
C.brought up
D.set up

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】Why not try your luck in the library? That’s ________ the American classical books are kept.

A. how B. why C. when D. where

查看答案和解析>>

同步練習冊答案