---Has the train arrived? ---No, it all will be late ___ half an hour.
Ladies and gentlemen, please fasten your seat belts. The plane __________.
Do you know the reason __ he was late?
The teacher asked us_______ in deep water
It was in the street ______I met xiao zhang_____the fire took placeA.which/which B.that/that C where /that D why/that
____people _____were killed or injured reached more than 400,000A.The number of,who B A great number of,whoC The number of, which D .A great number of,whom