【題目】No matter when you study, you must ________ the subject on hand.
A.assist in
B.bend over
C.approve of
D.concentrate on

【答案】D
【解析】concentrate on sth.意為“集中注意力做某事，把注意力集中在某事上”。assist in doing sth.意為“幫助做某事”；bend over意為“彎曲，低頭”；approve of意為“贊同”。句意：無(wú)論何時(shí)，只要你在學(xué)習(xí)，你就必須集中注意力在你手頭上的科目上。故選D。

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：高中英語(yǔ) 來(lái)源： 題型：

【題目】It is impossible to avoid ______ by advertisements in a modern society.
A.to be influenced
B.being influenced
C.to influence
D.influenced

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：

【題目】Charlie Chaplin, ___________ childhood was hard, began acting at the age of five.

A．who B．whom C．whose D. his

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：

【題目】You are not ________ to unemployment benefit if you have never worked.

A. accustomed B. resigned

C. entitled D. Submitted

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：

【題目】They eat only plant foods, and take care to ________ animal products from other areas of their lives.

A. contain B. maintain C. exclude D. Include

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：

【題目】He asked me .

A．if had I seen the film B．if have I seen the film

C．if I have seen the film D．if I had seen the film

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：

【題目】Time is pressing; it’s impossible for me to get there in an hour, ______ the possible delays．

A．a(chǎn)ccounting for B．a(chǎn)nswering for

C．a(chǎn)llowing for D．heading for

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：

【題目】 – I don’t think I can go any further.

– ______. You can do it if you keep trying!

A. Come on B. Take it easy

C. Never mind D. It doesn’t matter

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：

【題目】I have no ideathe cell phone isn’t working，so could you fix it for me?
A.what
B.why
C.if
D.which

查看答案和解析>>

同步練習(xí)冊(cè)答案