说明理由 1.-Mary,now you have a chance to study in Singapore for a year as an exchange student.Are you interested?-______ that be true?Of course I'll go.A.May B.Might C.Can D.Must2._____ on the floor of small ponds is a new farming industry.A.Rai

说明理由 1.-Mary,now you have a chance to study in Singapore for a year as an exchange student.Are you interested?-______ that be true?Of course I'll go.A.May B.Might C.Can D.Must2._____ on the floor of small ponds is a new farming industry.A.Rai
说明理由
1.-Mary,now you have a chance to study in Singapore for a year as an exchange student.Are you interested?
-______ that be true?Of course I'll go.
A.May B.Might C.Can D.Must
2._____ on the floor of small ponds is a new farming industry.
A.Raising crabs B.Crabs are raised
C.Crabs raised D.Raised crabs
3.We have been told that under no circumstances _____ the telephone in the office for personal affairs.
A.may we use B.we may use C.we could use D.did we use

说明理由 1.-Mary,now you have a chance to study in Singapore for a year as an exchange student.Are you interested?-______ that be true?Of course I'll go.A.May B.Might C.Can D.Must2._____ on the floor of small ponds is a new farming industry.A.Rai
1.选C .那可能是真的吗?如果是,我会去.can是可能的意思.
2.选A.该句子缺主语,Raising crabs 是动名词作主语.
3.选A.under no circumstances后面用倒装,排出B,C,A中的may是可以的意思,根据整句意思,最为合适.

1. C, 这句话后面是问好，首先排除D.May 或者might 是可能的意思，不适合语境。
2. D
3. D under no circumstances 后面用倒装