acher talked with Jack, _______ problems waspoor study habits.

Such things ___ you described in the report seldom happen now.

Remember this, children. _______ careful you are, _______ mistakes you will make.—We know, Miss Gao.

Guess what! We’ve got our visas for a short-term visit to the UK this summer.—How nice! You ____ a different culture then.

el it necessary that everything by the time our manager arrives.— Yes, to make sure the conference is held on schedule.