has been to 去,到过什么地方（人已经回来）如：He has been to Japan.他去过日本has gone to 到.去了（人还没回来）He has gone to Japan.他到日本去了has been in 在.地方他在日本两年了He has been in Japan for ...how long \how soon \how far \怎样用？【我可以追加分滴~麻烦你了- -、how long 多久时间，常就for + 时间段 “长达多久” 提问 A: How long have you been here?B: For three hourshow soon 表示“还要多久” 某件事才会发生， 常就“in + 时间段” 提问 A: How soon will he get here? B: In about half an hourhow far 意为“多远” 一般就“距离” 提问 A: How far is it from here to your school? B:Two hours' walk