I planted some fruit trees last year.

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I planted some fruit trees last year.
I planted some fruit trees last year but they _____ grow because they didn't get enough sun.
A.mustn't
B.wouldn't
C.shouldn't
D.mightn't
请问是选C,表示失望吗?如果不是那选什么为什么?

I planted some fruit trees last year but they (wouldn't) grow because they didn't get enough sun.去年我栽了些果树,可它们就是不长,因为没有得到充足的阳光.这里选择B.wouldn't应该是一种语气词其他几个答案都不合适 A.mustn't一定不能 C.shouldn't 不应该 D.might not

I planted some fruit trees last year. I planted some trees last week.(改为否定句) No trees ___ planted last year. Some trees weren't planted by people last year.不是否定句中用any吗,怎 they planted trees last year (改为一般疑问句） She planted some pear trees last spring.(被动语态) She planted some pear trees last spring.改成否定句 These trees were planted last year.变成否定句They weren't planted They------(plant) some trees last year. We planted these trees last year.怎么改成被动句,求答案 At the end of last year ,they had planted 3,0000 trees（找错误） Trees were being planted here this time last year.变过去进行时主动语态