_____ an important decision more on emotion than on reason, you will regret it sooner or later．
| A．Based | B．Basing | C．Base | D．To base |
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 |
As a result of the heavy snow，two-thirds of the buildings in the area A. need to repair B.needs to repair C.needs repairing D need repairing.