She looks very sad. I want to help her , but I just don’t know_________ to do.A．
题型：不详难度：来源：
| She looks very sad. I want to help her , but I just don’t know_________ to do. |
答案
| D |
解析
| “疑问词 + 动词不定式”是英语中常用的一种结构。在句中可以作主语、动词或介词的宾语以及表语。what 什么； when 什么时候；how怎样；where在哪儿。句意：她看起来很伤心。我想帮助她。但是我只是不知道怎么帮。故选D。 |
举一反三
If you don’t know ________ the new robot toy, you’d better read the instructions first.| A．where to mend | B．how to make | C．how to use | D．where to buy |
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I didn’t know at first, but later we became good friends.| A．who is the boy | B．who the boy is | | C．who was the boy | D．who the boy was |
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—Can I help you，dear?
—Yeah,l don’t know a banana milk shake. Maybe you can teach me.| A．what to do | B．when to make | C．how to make | D．why to do |
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Can you tell me what time ?| A．is the train leave | B．does the train leave | | C．the train leaves | D．leaves the train |
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We can use QQ to talk with each other online.
--Good! Will you please show me ______it?| A．what to use | B．how to use | C．when to use | D．where to use |
|
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