—Would you come and join us? —I wish I _____. I am busy at the moment.
Disappointingly, the new computer, ________ he loves a lot, breaks down frequently.
----I don’t suppose the police know who did it.----Well, surprisingly they do. A man has been arrested and _____ now.
He had ________me not to play games on the Internet again, but hardly could he get rid of them.
Without proper lessons, you could _________a lot of bad habits when playing the piano.
The college has developed an on-line system ________students can choose their own professors.