______environmental damage is done，it takes many years for the ecosystem to reco
题型：不详难度：来源：
______environmental damage is done，it takes many years for the ecosystem to recover.| A．Eyen if | B．If only | C．While | D．Once |
|
答案
| D |
解析
| 答案为D. 考查连词用法。even if意为“即使”引导让步状语从句；if only意为“要是……该多好，但愿”常用虚拟语气；while意为“当……的时候；然而”；once意为“一旦”引导时间状语从句，从题意来看．应该选D才符合。 |
举一反三
The incomes of skilled workers went up . , unskilled workers saw their earnings fall.| A．Moreover | B．Therefore | C．Meanwhile | D．Otherwise |
|
The medicine works more effectively you drink some hot water after taking it .| A．as | B．until | C．although | D．if |
|
I travel to the Binhai New Area by light railway every day, _____ do many businessmen who live in downtown Tianjin.| A．as | B．which | C．when | D．though |
|
A good friend of mine from I was born showed up at my home right before I left for Beijing．| A．how | B．whom | C．when | D．which |
|
It is obvious to the students ______ they should get well prepared for their future.| A．as | B．which | C．whether | D．that |
|
最新试题
热门考点