（ ）A:When _____ the train _____ B:In half an hour.

（ ）A:When _____ the train _____ B:In half an hour. The school is _____ A.half an hour B.half an hour's How soon will the train ___?In half an hour.A.get B.reach C. _____ will the meeting begin in half a hour. When ___the train __?In half an hour. When did the train ___ Half an hour ago the train will arrive in half an hour later? Could you tell me _____- Certanily.In half an hour. ( )The train will arrive_______.A.after an hour B.in an hour The student is made _____ there for half an hour. My parents will come back _____ half an hour.A.after B.befor I’m going to the shop _____.A.for an hour B.after an hour C.