______ saying hello to them and asking them where they come from?A.Why not \x05 B.Why don’t you \x05C.How about D.Remember 是C吗

______ saying hello to them and asking them where they come from?
A.Why not \x05 B.Why don’t you \x05C.How about D.Remember 是C吗

是C
因为后面接的是doing,所以用C,
Why not和Why don't you 后面都是加动词原形

选C 对的 A B 要选的话，原句要用动词原形say 和ask