27、You know he is not going to let us leave early if we ___ get the work done.
A. can't B. may not C. shouldn't D. mustn't
26、Both sides have accused of breaking the contract ___.
A. another B. the other C. neither D. each
25、We ___ our new neighbors yet, so we don't know their names.
A. don't meet B. won't meet C. haven't met D. hadn't met
24、The parents suggested ___ in the hotel room but their kids were anxious to camp out during the trip.
A. sleep B. to sleep C. sleeping D. having slept
23、When the spaceship traveled above, new-looking earth appeared before us, earth that we had never seen before.
A．a; the B．the; an C．/; the D．a; an
22、Recently some studies have found that learning second language can lead to increase in one’s brain power.
A. a; the B. ~; the C. a; an D. the; an
21、 such a good chance, how could she let it slip away?
A. Having been given B. Having given
C. To being given D. To have given
20、It’s so hot! The temperature must be over 100 degrees!
A. very B. well C. much D. still
19、The lecture starts at 6:00 sharp. Latecomers will not be .
A. admitted B. interrupted C. approved D. disturbed