The petrol tank is empty. I _________it up before we left home.
| A．had to fill | B．would have filled |
| C．should have filled | D．could have filled |
There is no doubt that the increase in demand _____ the rise in prices.
| A．leads to | B．refers to | C．applies to | D．adapts to |
You have to believe in yourself. Self-confidence is _____ to success.
| A．essential | B．combined | C．similar | D．compared |
We can’t go to the concert. _____, it’s too cold. Besides, we’ve no tickets.
| A．After all | B．In other words |
| C．As a result | D．To start with |
The dresses in this company are available in a great _____ of sizes and styles.
| A．combination | B．variety | C．couple | D．amount |
Tommy is _____ only child in the family, so his parents make _____ fuss of him.
| A．an; 不填 | B．不填; the | C．不填; a | D．the; a |