I’m sorry I can’t go with you. I have to go to Shenzhen on business.— ________. Maybe next time.

The baseball is on the floor,________ the bookcase and the desk.

It is _____ he often fails in exams____ makes his parents worried about him.

The doctor said that the old man’s condition was _____ and that they had tried their best. [ ]

international market, the price of petroleumhas been falling down, which is now _____ it used to be