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单项选择1、( )I hear the new shopping mall gives a discount _____

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单项选择
1、( )I hear the new shopping mall gives a discount ________ 50%.
A、up B、to C、up for D、up to
2、-May I go home now?
-No,you ________.You _________ finish your homework first.
A、needn't;may
B、can't must
C、mustn't;can
D、may not;should
3、The talk is ________to be _________ Saturday morning.It's dangerous.
A、likely;on B、possible;in C、able;on D、like;on
4、If you can't remember the words quickly,you need _______ to help you.
A、to more exercise B、many exercise
C、more exercises D、to exercising
说明理由,
PS:小弟刚刚注册,请各位多多关照,多多包涵.当然,最佳答案我会在两天内选出来的.
1.D up to是多达的意思
翻译:我听说这家新商场打折高至5折
2.b 第一个空就能选了
can't表是不能 must没有否定式 may not 也许不 needn't 不必
3.a 考的是词组 be likely to 表示“很可能”
possibe 后不加to;be able to 表示“有.的能力” D.没有这词组
4.c.首先这里需要名词做宾语.可以排除a和d
再有exercise 做练习解的时候是可数名词,做锻炼解的时候是不可数 所以选c'