— Well, lost again!— It is not very important . We _____ forget about it. OK?
Either you or I _____ going to attend the meeting in the afternoon.
Students should be encouraged to use _____ Internet as _____ resource.
His sister left home in 1998, and_______ ever since.
Sam _____ some knowledge of the computer just by watching others working on it.
-----Have you been wasting time on computer games again?----- _______. I’ve been studying a lot and I need a break.