you had better drop your parents a ________ in case (以防)they are worrying about you.
| A．message | B．news | C．letters | D．line |
If you are left _______ on a _________land, how will tou make a living?
| A．lonely; deserting | B．alone; deserting |
| C．alone; deserted | D．lonely; deserted |
He studies in the evening instead ________ the day.
| A．/ | B．of | C．of during | D．of on |
Make yourself ________home and help yourself _______anything that you’d like to eat.
| A．in; with | B．at ; to | C．at; with | D．in ; to |
What was it ________you found in the hotel?
| A．that | B．which | C．and | D．this |