--Did you meet the professor at the airport?--No,he _ by the time I _ there.A.had left;got B.has left ;reached C.was leaving ;got D.left ;had got

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--Didyoumeettheprofessorattheairport?--No,he_____bythetimeI_____there.A.hadleft;gotB.hasleft;reached

--Did you meet the professor at the airport?--No,he _____ by the time I _____ there.A.had left;got B.has left ;reached C.was leaving ;got D.left ;had got
--Did you meet the professor at the airport?--No,he _____ by the time I _____ there.
A.had left;got B.has left ;reached C.was leaving ;got D.left ;had got

--Did you meet the professor at the airport?--No,he _____ by the time I _____ there.A.had left;got B.has left ;reached C.was leaving ;got D.left ;had got
A
by the time 是过去完成时的标志.
前面的动作用过去完成时,后面的动作用一般过去时.

A by the time前用过去完成时，后用过去时

A。我到达之前教授已经走了，动作发生在我到达之前，故用过去完成时。

A.因为说的是过去的事情，因此整体上要用过去时。而离开是在我到达之前，因此用过去完成时。

A
首先C和D直接排除，这里主要考察的就是完成时态。

选A吧，首先前面是did说明这是过去式，而他离开时发生在我到那之前，所以是过去的过去。

reach是瞬时性动词，不能用过去完成时

连词成句:you,the,did,party,meet,who,at(?) And how the people?Did you meet _____ Japanese “Who did you meet there? In the boundless huge,who did you meet?Who met you? 选择:Did you ＿＿him at the gate?-Sure.I＿＿him at the gateA.meet,meet B.met,met C.meet,me 翻译Where did you meet your spouse. when did you meet him是什么意思 p53 Did you meet anyone interesting? What other people did you meet at the party?(把what other people 进行替换） what other people did you meet in the park 改为同义句 Waht other people did you meet in the park?的同义句是什么 Who did you meet at the party?要用上 someone very interesting Did you meet anybody interesting at the party?什麼意思? 根据首字母完成单词 Who e did you meet at the airport? 是用Whom did you meet?还是who did you meet?好把who did you meet in the sreet yesterday morning?Can you tell me 改成宾语从句 where did you meet the pop starit was in the hotel ___ Iatayed that daya.whichb.where who met you 与 who did you meet 一样吗