I can’t find my milk in the fridge now, but there ______ some just now.
A. isB. was
C. areD. were
— We’ve never ______ astronauts’ life though we’re interested in.
— Really? I’ll offer you some books about it.
A. thought aboutB. chatted about
C. learned aboutD. cared about
— Jane. I can't find Mike in the playground.
—Oh. He ______ the piano in the music room.
A. is playingB. was playing
C. has playedD. will play
—Simon. I hear you are going abroad for further study. Have you decided ______?
—Next September.
A. when goingB. when to go
C. how goingD. how to go
—Dad, shall we go to the World Park tomorrow?
—Sorry. I won’t be free, but you ______ ask Mum to go with you.
A. mustB. may
C.wouldD. should
You won't work out the problem ______ you understand it. So listen to me explain now.
A. sinceB. when
C. unlessD. though
