He ________ the problem ________ in his mind for a whole week before he did anything about it.
| A．switched;on | B．kicked;up |
| C．turned;over | D．took;on |
Would it be ___ for you to help me take my luggage upstairs?
| A．free | B．vacant | C．handy | D．convenient |
When we plan our vacation, Mother often offers ___ suggestions.
| A．practical | B．stable | C．innocent | D．bearable |
He was scared to death by a(n) ___ entrance when he is absorbed in reading.
| A．abrupt | B．swift | C．valid | D．stable |
–--I’d better ___ now. The water is boiling in the kitchen. –--- Goodbye.
| A．ring back | B．ring up | C．ring out | D．ring off |
It’s the love and responsibility that have driven him to ___ many hardships and survive.
| A．go into | B．go through | C．look through | D．look into |