If you can be more strict ________ your work, there would be fewer mistakes.
A.on B.at C.in D.With
—I really regret________．
—Forget it. Time will kill everything.
A.what I did B.when you will leave C.where should I go D.why will you leave
I regret________ that Lily can't come to the party because she is badly ill.
A.to say B.saying C.said D.say
I failed the exam and regretted________ so much time playing computer games.
A.waste B.to waste C.wasted D.wasting
may, be, he, not, at home
________________________________________________________________________.
must, classroom, be, now, the, cleaned
________________________________________________________________________.
