Tom is a good boy.He often helps his mother______ housework.A.doing B.do C.did
( ) We’re going to ____ middle school this September. A. start B. starts C. starting
( ) We’re also going to _____ new friends. A. meet B. meeting C. met
( ) I’m very sad to ____ goodbye to you . A. say B. says C. saying
( )Keep ____ practicing Chinese in the UK. A. in B. on C. for
( ) I am happy ____ them. A. for B. of C. to