Zhang Ping_______already_______in this school for two years. A: was, studying B: will, study C: has, studied D: are, studying

When I got to the station the train ______ left. A: already had B: had already C: has already D: already has

Ann ________the film. A: have already seen B: has already seen C: has already seed D: have already saw

【单选题】.—Have you cleaned your room_____? —Yes, I’ve_____cleaned it. A.already, already B.yet, yet C.yet, already A. already, already B. yet, yet C. yet, already

69. Mr. Brown ____ here for two weeks. A: has already been B: is already being C: has already been being D: is already

I have ______ gone over my lessons, but he hasn't ______. A: already,already B: already,yet C: yet,already D: yet,yet

If you ___for your flight, you need to cancel check-in to be able to change your flight. A) B) haady checked in C) have already chd alreecked inD) already checked in A: already check in B: have already checked in C: had already checked in D: already checked in

When they arrived at the airport, the plane _______. A: already set off B: set off already C: had already set off D: has already set off

PING命令可以() A: ping MAC地址 B: 只能ping<br/>IP地址 C: ping域名和ping<br/>IP地址 D: 只能ping域名

ping命令中表示一直ping下去，需要通过ctrl+c停止的是__________。 A: ping -n B: ping -l C: ping -i D: ping -t