1.Everything must-------before the event.A.plan carefully B.be planed,carefully C.be planned carefully2.They needed to walk,------?A.needn't B.don't they C.didn't D.need they3.SO far,no one-----(send)to any place farther than the moon.4.Nothing------

1.Everything must-------before the event.A.plan carefully B.be planed,carefully C.be planned carefully2.They needed to walk,------?A.needn't B.don't they C.didn't D.need they3.SO far,no one-----(send)to any place farther than the moon.4.Nothing------
1.Everything must-------before the event.A.plan carefully B.be planed,carefully C.be planned carefu
lly
2.They needed to walk,------?A.needn't B.don't they C.didn't D.need they
3.SO far,no one-----(send)to any place farther than the moon.
4.Nothing-------(hear) about the accident ,but just like it-----(say) no news----(be) good news.
Cindy----(make)---(stay)at home,as her mother----(be) terribly ill.

1.Everything must-------before the event.A.plan carefully B.be planed,carefully C.be planned carefully2.They needed to walk,------?A.needn't B.don't they C.didn't D.need they3.SO far,no one-----(send)to any place farther than the moon.4.Nothing------
1.选 C
被动语态 be + 动词ed（过去分词） plan 的过去分词是planned
2.选C didn't they
need to do 中 的 need 是实义动词,所以用助动词 did
3.has sent
so far 到目前为止,用现在完成时
4.is heard is said is
is made to stay is
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B.be planed,carefully
C.didn't
has been sent
has been heard says is
was made to stay was

B，必须好好计划，仔细计划，强调计划这个动作，用被动语态。

1.C
2.didn't they没一个答案是对的
3.has been sent现在完成时的被动态
4.has been heard, says, is
5.is made to stay, is/was made to stay, was