Babies sleep l6 to l8 hours in every 24 hours, and they sleep less ________ they grow older.
| A．while | B．as | C．when | D．after |
Mr. Alcott, headmaster of the school, refused to accept made by the Students' Union.
| A．either | B．neither | C．any | D．none |
There was less food for birds and also for the Prairie dog, an ____holes in the ground.
| A．livs | B．is living | C．living | D．lived |
--Do you mind if I smoke here?.
--____________.
A. Sure. Go ahead B. No. Go ahead C. Yes. Please
Even on holidays, he preferred doing something_____staying at bed.
| A．without | B．than | C．rather than | D．rather |
I hope there are enough glasses for each guest to have___________.
| A．one | B．不填 | C．them | D．to |