We should have our students ________ hard instead of ________ too much time playing games.

Could you please come to the museum with me this afternoon—Sorry, I ______ . I have to take a piano lesson at 2 pm.

e was alive, the old scientist usedto say that knowledge ____ from practice and he gained his experience by doinga lot of practical work.

－___________do you go to Old People’s Home－Twice amonth.

From what she has done we can predict that she is ______enough to make up her own decision and behave in a proper way.