精选优质文档-倾情为你奉上1 .Tom is not at school. Do you know what happen _?A. with him B .to him C. to he D. for he2 .My mother is _. I have to look after her.A .in the hospital B.At a hospital C .in hospital D. in a hospital3 . Did you hear someone _at the door?A. knocks B. to knock C. knocked D. knocking4 .The teacher told the children, “ it is very important_ careful _fire.”A. to be; with B. is; with C. being; with D. to be; to 5 . She
