Lily and Lucy____go shopping.A.is B.are C.\Lily and Lucy____doing their homework.A.is B.are C.\

Lily and Lucy____go shopping.A.is B.are C.\Lily and Lucy____doing their homework.A.is B.are C.\
Lily and Lucy____go shopping.
A.is B.are C.\
Lily and Lucy____doing their homework.
A.is B.are C.\

Lily and Lucy____go shopping.A.is B.are C.\Lily and Lucy____doing their homework.A.is B.are C.\
第一题C,主语是两个人,而且动词是go, 是一般现在时.要是句中不是go,而是going,就可以选are 啦.所以这个题只能选C.
第二题B.因为前边是两个人,而且动词是doing,所以这个题是现在进行时,所以要用 are doing.

B B

b
b
主语是复数用are

C B