–What are you doing? - .A. I can sing. B. I’m singing. C. I am going to sing.
Helen is good at . A.dance B.danceingC. dancing
Can you help me my homework? A.doing B.forC.with
There are four in my family. A.people B. peoples C.a people
Su Hai’s parents are _______. A. cooks, B.cookers C. cookes
In the US, we call a policeman a “_______”. A. fireman B. firefighter C. cop