Eating too much fat can ________ health problems，so we must have a balanced diet.
| A．lead to | B．result from | C．refer to | D．devote to |
Never ______ so excited because it is the first time that I ______ such a fantastic experience.
| A．I have been; had | B．have I been; have had |
| C．have I been; had had | D．I have been; have |
Mary is ______ a translation of a French novel.
| A．engaged with | B．busy in | C．absorbed to | D．occupied with |
Plastic parts can ______ metal ones in many machines. But they don't last long.
| A．substitute for | B．be replaced with | C．take the place for | D．in place of |
—I’m thinking of the test tomorrow. I’m afraid I can’t pass this time.
—________！I’m sure you’ll make it.
| A．Go ahead | B．Good luck | C．No problem | D．Cheer up |
-- Mr. Brown, National Day is coming…
--- ______? Just occupy yourself in your study.
| A．So what | B．What if | C．How come | D．What for |