Sue had her luggage _________ an hour before her plane left.
| A．check | B．checking | C．to check | D．checked |
We all agree that _______ good knowledge of physics is a must in explaining such _______ natural phenomena.
| A．a; / | B．a; a | C．/; a | D．/; / |
— How many jobs _______ Collin Manning, the exchange teacher to our school, has done?
— Five, _______ cook to teacher.
| A．is it that; ranged from | B．are there what; ranging from |
| C．is it that; ranging from | D．are there what; ranged from |
— I went to work on foot yesterday, though it _______ cats and dogs.
— You _______ by bus. It was easy for you to get a cold.
| A．is raining; must have gone | B．rained; would go |
| C．have rained; could have gone | D．was raining; should have gone |
They earn a great deal, but they can’t balance their _______ because the wife is often ill.
| A．plan | B．budget | C．project | D．prediction |
Nobody but doctors or nurses and those _______ by Dr. Hu _______ to enter the patient’s room.
| A．invited; is allowed | B．inviting; are allowed |
| C．are invited; is allowed | D．invited; are allowed |