题目内容

---- An ant has two stomachs --- one for itself and the other for others.
----Really? Quite interesting. I ________ anything about it.
A．don’t knowB．hadn’t knownC．haven’t knownD．didn’t know
D
考查时态。“蚂蚁有两个胃，一个自己用一个为别的蚂蚁。”“真的么？我不知道。”在对话时不知道，所以用一般过去时态。
练习册系列答案
相关题目
--- Why don’t you ride your bicycle today?
--- Oh, it broke down. It ________ now.
A．is repairing B．is being repairedC．is repairedD．will repair
Every necessary means____ to protect milu deer which____ very valuable to us. As a result, the number of milu deer is increasing.
A．are used; isB．is being used; is
C．have been used; areD．has been used; are
—Have you been to the United States?
—Yes, only once. I ________ there only for seven days.
A．stayedB．had stayedC．have stayedD．was staying
–Hi, Tom, You look tired.
--Yes, I _____________ the room all the afternoon.
A．paintedB．had paintedC．have paintedD．have been painting
Every few years, the coal workers                 their lungs X-rayed to ensure their health.
A．are havingB．haveC．have hadD．had had
We are glad to hear that the Greens_________to a new flat next week.
A．movedB．movedC．will moveD．have moved
The football match will be put off ,if it______.
A．will rain B．rainsC．rainedD．is raining
—Could I use your dictionary?
—Sorry, it __________.
A．is usingB．was usingC．was usedD．is being used

违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com

精英家教网