If we________a table earlier，we couldn’t be standing here in a queue.
| A．have booked | B．booked |
| C．book | D．had booked |
— It is important for you to findappropriate course at college．
—I can't agree more．It'sdecision that affects the whole family．
| A．the, the | B．an, the | C．an, a | D．the, a |
A good advertisement, _____ people attach positive meanings, can contribute to the sales of a product．
| A．for which | B．to which | C．of which | D．on which |
The teacher knows that you are always the first ________ to the classroom since last September.
| A．coming | B．to come | C．came | D．has come |
We can’t take part in the competition ________ we get our student card.
| A．before | B．if | C．While | D．as |
It was announced that only when the examination papers were handed in ________to go out of the classroom．
| A．the students would be permitted | B．had the students been permitted |
| C．would the students be permitted | D．the students had been permitted |