英语选择1.--Mum,I have finished my homework._____I go out to pla

英语选择
1.--Mum,I have finished my homework._____I go out to play basketball with my classmates?
--No,you______.You must tidy your room first.
A.Might;might not B.Could;can't C.Should;shouldn't D.Could;could not
2.--John,_____I use your e-dictionary?
--Yes,you______,but not now.
A.can;can B.do;do C.could;need D.may;could
3.--_____I have a rest,sir?I am very tired.
--Yes,you_____.You____ have a ten-minute rest.
A.Can;cannot;can B.May;may;should C.Might;might;might D.Could;can;can
4.--Excuse me,____I open the window?The smell is not so good in here.
--Sorry,you____.It is col outside.
A.need;can't B.may;may not C.could;couldn't D.can;shouldn't