— It’s the office! So you know eating is not allowed here.
— Oh, sorry.
A. must B. will C. may D. need
第1题:
A: I haven't sat down all day.
B: You _____be very tired.
A. could
B. have to
C. must
第2题:
3.—__________ 1 go out for a while?
—No,you __________ You must finish your homework first.
A. Must,needn't
B. Can,may
C. May,mustn't
D. May,must
第3题:
Al2(SO4)3溶液与Na2S溶液反应的产物是
A.Al2S3+ Na2SO4
B.Al(OH)3 + S+ Na2SO4
C.Al(OH)3 + H2S
D.Al2S3+ Na2S2O3+ S
第4题:
A.Must; needn’t
B.Can; can’t
C.May; mustn’t
D.Can; mustn’t
第5题:
用所给的词和词组写出符合逻辑的句子。 are not/you/a license/allowed/electronic equipment/to import/without
You are not allowed to import electronic equipment without a license.
略
第6题:
下列物质的溶液中滴加盐酸无明显现象的是:
A.Na2SO4#B.Na2SO3#C.Na2S#D.Na2S2O3< xmlnamespace prefix="o" ns="urn:schemas-microsoft-com:office:office" >