为你解答.
1 I usually hear (A.from)my uncle once a mounth.
2.The weather in Beijing is wetter than (C.that) in Shanghai.
3.--You had little milk last night, (C.did you)? --Yes, I had a lot.
4.Both Mary and Sally (B.are) interested in heavy music.
5.Lisa (B.sometimes) goes biking with her parents on weekends.
6.--(B.How) beautiful the roses are! --I'm glad you like them.
7.--Would you please (C.turn down) the radio a little bit? It's too loud.
--Sorry, I'll do it soon.