He has just ______________ at the hotel. A: check in B: checked in C: check on D: checked on

6. --- We had to _________very early this morning at the airport. A: A. check in B: B. check C: C. checked in D: D. checked

The composition needs ______ before it is handed in. A: to check B: checking C: checked D: check

______ the instruction carefully, the mistakes can be avoided. A: Having checked B: B. Check C: If you check D: D. To check

-What time is it? -I have no idea. But just a minute, I ______ it for you. A: check B: checked C: will check D: would check

 _______ your composition carefully, some spelling mistakes can be avoided. A: Having checked B: Check C: If you check D: To check

It is worth ________ the details of the contract before you sign it. A: to check B: being checked C: checking D: checked

There is something wrong with the TV set. I must have it _____. A: check B: checking C: to check D: checked

The car often breaks down and we must have it () thoroughly. A: check B: checked C: to check D: checking

Chaire had her luggage an hour before her plane left. A: check B: checking C: to check D: checked