People are using more and more natural gas, wind and other forms of _____.
| A．energy | B．force | C．power | D．strength |
The house rent is expensive. I’ve got about half the space I had at home and I’m paying _____here.
| A．as three times much | B．as much three times |
| C．much as three times | D．three times as much |
Medicine shouldn’t be kept where it is _____ to children.
| A．possible | B．obtainable | C．enable | D．accessible |
He studied hard, _____ the exam.
| A．aim at passing | B．aiming passing | C．aiming at passing | D．aim to pass |
-- What made her so upset?
-- ______ she failed in her examination.
| A．What | B．That | C．Because | D．Whether |
--Would you like to see a film with us tonight ?
--- I’d like to. But I can’t ______ the time because I have to finish my composition.
| A．afford | B．pass | C．take | D．spend |