4. [2013 •遼寧卷]We are confident that the environment    by our further efforts to reduce pollution. 

A.    had been improved

B.    will be improved

C.    is improved

D.    was improved

4.    B 考查動詞的時態(tài)。根據(jù)已知時態(tài)we are confident,可以先排除A、D。再根據(jù)our further efforts可知是將來的事情,所以用將來時。故選B。句意:我們有信心,在我們進一步減少污染的努力,下,環(huán)境將得到改善。

題目來源:2015全品語法快練高中英語新課標(biāo) > 綜合訓(xùn)練(四)

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