Question

His sister left home in 2009, and＿＿since.

A．had not been heard of	B．has not been heard of
C．had not heard of	D．has not heard of

Answer 1

B

試題分析：考查時(shí)態(tài)語態(tài)，時(shí)間是副詞since“自從那時(shí)”，用現(xiàn)在完成時(shí)，而且his sister和hear of是被動(dòng)關(guān)系，所以選B，句意是：他姐姐2009年離開家，自從那時(shí)一直沒有音訊。
點(diǎn)評(píng)：要善于確定句子時(shí)態(tài)，可以通過時(shí)間狀語確定,還可以根據(jù)上下文來確定.但不能斷章取義，要認(rèn)真看清題意。也同時(shí)考慮語態(tài)問題。