—Our teachers and parents always warn us not to smoke.
—Yes, actually, the risk of heart disease is a powerful argument ____ smoking.
| A．against | B．for |
| C．into | D．at |
It is you, I think, rather than your wife, _________ to blame for your son’s bad behavior at school．
| A．that is | B．who is |
| C．that should | D．who are |
As is known to all, Montreal is the second largest French-speaking city in the world, ______．
| A．Paris is the largest | B．Paris the largest |
| C．Paris to be the largest | D．Paris be the largest |
I _______ have been more than six years old when the accident happened．
| A．shouldn’t | B．couldn’t | C．mustn’t | D．needn’t |
Men usually go straight to ________ they want and leave quickly when shopping．
| A．What | B．which | C．where | D．that |
In the reading-room, we found Winifred ____at a desk, with her attention _____on a novel．
| A．sitting; fixing | B．seating; fixed |
| C．sitting; fixed | D．seated; fixing |