用括号内所给动词的适当形式填空。
小题1:We ________(watch) the boys ________(play) basketball on the playground when something strange happened.
小题2:I don’t know what _________ (happen)to him just now.
小题3:Computers are useful to us. But some students only use them ________ (play) games.
小题4:–--Would you mind ________(take) photos with me?
--- Of course not. When I miss you, I can have a look.
小题5:You may go to play football as soon as your homework ________(finish).
小题6:Middle school students ________(tell) not to smoke.