They had to stay at home because of the heavy rain,_________?A.hadn't they B.didn't they C.did they D.had they我选了A,但是答案是B,为什么呢?

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They had to stay at home because of the heavy rain,_________?A.hadn't they B.didn't they C.did they D.had they我选了A,但是答案是B,为什么呢?
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They had to stay at home because of the heavy rain,_________?A.hadn't they B.didn't they C.did they D.had they我选了A,但是答案是B,为什么呢?
They had to stay at home because of the heavy rain,_________?
A.hadn't they B.didn't they C.did they D.had they
我选了A,但是答案是B,为什么呢?

They had to stay at home because of the heavy rain,_________?A.hadn't they B.didn't they C.did they D.had they我选了A,但是答案是B,为什么呢?
B对,前肯后否.
因为had to是 have to 过去时,其否定句要加助动词didN‘t ,反意疑问句也一样
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这里had是实意动词，表示“必须”之类的意思。而这里反义疑问句应由助动词（也就是一般说的do）来引导，并且这题是过去式，所以用didn't

如果是现在时态句子应该是：They have to stay at home because of the heavy rain ,所以这里had 是have的过去式， 用的是have to do 这个句型

这里had to是have to词组（不得不，必须）的过去时，而与完成时无关。
因此，在答案中选择过去时的否定选项即可，即，B

They had no choice but to stay at home .同意句they could do(.) (...) stay at home They had nothing to do but ( )at home.是选stay还是stayed? they had to stay at home,it snowed heavily合并为一句 They had to stay at home yesterday,______?A.hadn't they B.had they C.didn't they D.did they it rained ___last sunday .they had to stay at home.all the day/all day/all days 选什么 为什么 They had to stay at home____a heavy rain.A.because B.for C.as D.because of 同义句They could stay at home aloneThey could stay at home alone They - - to stay at home alone 34.It was raining hard,they has to stay at home.34.It was raining hard,they_____ stay at home.A.must B.would C.had to D.could前面是they为什么用has to 而不用must? They had to stay at home because of the heavy rain,_________?A.hadn't they B.didn't they C.did they D.had they我选了A,但是答案是B,为什么呢? She had to stay at home because it rained___(heavy). Tom had to stay at home yesterday.改为一般疑问句 i had to stay at home relax 改错 we all went ()tome.he had to stay at homeAbesidesBbesideCexceptDwith We had to stay at home because the rain was heavy.同义句 We had stay at home --- --- --- --- ---.快 It is raining______ ,so they have to stay at home linda had a bad cold.the doctor asked her() [stay,to stay,stayed,staying]at home They would like to stay at home为什么填to stay明天要用, they wented to stay at home at home at last 改为一般疑问句