题目
题型：不详难度：来源：
They _________ on the program for almost one week before I joined them, and now we are still working on it as no good results have come out so far.
| A．have worked | B．had worked |
| C．have been working | D．had been working |
答案
解析
核心考点
试题【They _________ on the program for almost one week before I joined them, and now 】；主要考察你对一般现在时等知识点的理解。[详细]
举一反三
. --So hard __________ in the past few months that he has made great progress in English.
--I can see that, only a few mistakes he made in this exam.
| A．he worked | B．did he work |
| C．he has worked | D．has he worked |
He looked as though he _________ a ghost（鬼）.
| A．saw | B．has seen | C．have seen | D．had seen |
. You must do your homework now; you ______ computer games all the evening.
| A．have been playing | B．play |
| C．are playing | D．played |
Standing on the top of the Wolf Mountain, ______ a good bird’s–eye view of Nantong city.
| A．it will be | B．you will get | C．there will be | D．it will have |
Her money ______, the lazy middle-aged woman began to steal others’ money at crowded places, such as bus stops, stations, airports and ports.
| A．had run out | B．running out |
| C．having been run out | D．ran out |
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