The plane left______Shanghai_____a rainy morning.A.to;in B.for;on C.in;on D.at;inThe students are used_____a song at the______of the class.A.to sing;beginning B.to singing;start C.to singing;starting D.to sing;beginingThere is nothing______.A.

The plane left______Shanghai_____a rainy morning.A.to;in B.for;on C.in;on D.at;inThe students are used_____a song at the______of the class.A.to sing;beginning B.to singing;start C.to singing;starting D.to sing;beginingThere is nothing______.A.
The plane left______Shanghai_____a rainy morning.
A.to;in   B.for;on  C.in;on D.at;in
The students are used_____a song at the______of the class.
A.to sing;beginning  B.to singing;start  C.to singing;starting   D.to sing;begining
There is nothing______.
A.for us to worry   Bof us to worry   C.for us to be worried  D.for us to worry about
_____of them has a dictionary and_____one of them can look up words in the dictionary.
A.Each;every    B.Every;each    C.Each;each    D.Every;every

The plane left______Shanghai_____a rainy morning.A.to;in B.for;on C.in;on D.at;inThe students are used_____a song at the______of the class.A.to sing;beginning B.to singing;start C.to singing;starting D.to sing;beginingThere is nothing______.A.
1 B
leave for 动身去…… ； 在一个具体的早上用ON 或MORNING 前有形容词时要用ON
2 B
be used to doing sth 习惯于做某事,start 可用名词
3 D
WORRY 不及物动词,接宾语时要用介词
4 A
EVERY 后不能接OF ,排除 B D ,every one of them 他们中的每人个
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B
leave for...前往
morning,evening,afternoon前凡是有天气词，介词一律用on，表示特殊性

B
be used to doing sth 习惯做某事
the start of...=the beginning of ... ....的开始

D
nothing需和worry abou...

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B
leave for...前往
morning,evening,afternoon前凡是有天气词，介词一律用on，表示特殊性

B
be used to doing sth 习惯做某事
the start of...=the beginning of ... ....的开始

D
nothing需和worry about 成动宾关系

C
each可以直接做代词，放在介词前；也可以做形容词放在代词one前；
every 不可做代词

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B
AD一样
D
A

A
A
D
A

1.B 考察词组 leave for 状语a rainy morning 搭配介词on 2.B 考察 be used to doing sth. 习惯于做某事 at the start of 在...开始之前 （=at the begining of） 3.D about不能省去 4.A every不能与of连用 everyone 才能与of连用。 望采纳 谢谢