the house on fire, he dialed 119.
| A．To see | B．Seeing |
| C．Having seen | D．Being seen |
The road is covered with snow. I can’t understand ________ they insist on going by motor-bike.
| A．why | B．whether | C．when | D．ho |
--Do you mind if I smoke here?
--____________.
A. Sure. Go ahead B. No. Go ahead C. Yes. Please
I hope there are enough glasses for each guest to have___________.
| A．one | B．不填 | C．them | D．to |
Nobody believes him ____________ what he said.
| A．even enough | B．in spite of | C．no matter | D．contrary to |
It’s clear__________ that a hard working student has___________ a great
interest in science.
| A．不填; discovered | B．不填; developed |
| C．that; invented | D．that; developed |