【題目】It ______3 years _____China launched Chang’e 1.

A. is, forB. has been, withC. was, sinceD. has been, since

【答案】D

【解析】

句意:自從中國發(fā)射嫦娥一號(hào)以來,已經(jīng)有3年了。本題考查句型:It ishas been+時(shí)間+since+持續(xù)性動(dòng)詞的過去時(shí),表示自從……以來到現(xiàn)在已有多久。本題中的選項(xiàng)A/B的第二個(gè)空應(yīng)該用since,而不用forwith,因此排除;選項(xiàng)C的第一個(gè)空用was,那么在since引導(dǎo)的從句中,應(yīng)該用過去完成時(shí)。所以C不對(duì)。故選D

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