Jack did nothing but ___.
| A．complain | B．to complain | C．complained | D．in complaining |
They stopped fighting but stood there, ____each other without saying anything.
| A．glaring_at | B．staring_at | C．glancing at | D．glared at |
The boy fell asleep where he ______,without undressing.
| A．was laying | B．was lying | C．had laid | D．had lied |
Some countries are increasing their use of natural gas, and other forms of ______.
| A．source | B．energy | C．power | D．strength |
Liping has never gone to Japan, but he speaks Japanese____ he were Japanese.
| A．even if | B．as though | C．even so | D．as long as |
They have decided to ____ the household expenses to devote money to the disaster area.
| A．cut off | B．cut in | C．cut up | D．cut down |