【題目】They don’t think the problem so far they_______.（ ）

A．have had has been solved

B．have had been solved

C．have to solve been solved

D．have solved has been solved

【答案】A

【解析】

試題解析：分析句子，不難發(fā)現(xiàn)本句中有一個(gè)關(guān)鍵性的時(shí)間狀語so far，故用現(xiàn)在完成時(shí)；又由于這是一個(gè)省略了關(guān)系代詞的定語從句，同時(shí)，主語和謂語動(dòng)詞之間是被動(dòng)的關(guān)系，故句子的結(jié)構(gòu)可以重新組合看成是：So far, they don’t think the problem that they have had has been solved，可知選A。

句意：到目前為止，他們認(rèn)為他們有的問題還沒有被解決。

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