He with his mother __________ going shopping.
( )(10) It is time ____ go to school .A. go B. going C. to go
( )(9) ____ English book is this ?A. What B. Who C. Whose
( )(8) What is ______ job ?A. he B. she C. her
( )(7)____ have a happy family .A. We B. Us C. Our
( )(6)Thank you _____ your letter .A. to B. of C. for