What the boy ____ make his friends happy.A．does didB．did didC．do doD．do does
题型：不详难度：来源：
What the boy ____ make his friends happy.| A．does did | B．did did | C．do do | D．do does |
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答案
| B |
解析
| 第一个did做主语从句的谓语, 第二个did是主句谓语的强调形式。 |
举一反三
—Who is making so much noise in the garden?
—______ the children.| A．It is | B．They are | C．That is | D．There are |
|
Your mother, however, ____ say that to us that day.| A．does | B．did | C．is doing | D．was doing |
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Our math teacher, however, _____ speak English well.| A．doing | B．does | C．is doing | D．was doing |
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--__________ was it_________ they discovered the entrance to the underground place?
--Totally by chance.| A．How; that | B．What ; that | C．When; when | D．Where; that |
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—He looks unhappy.
—Yes,but he can’t say what it is_______is bothering him. |
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