________ at the door before you enter my room, please.
| A．Knock | B．Knocking | C．Knocked | D．To knock |
He used to be a successful businessman, but drug ____ his ruin.
| A．attended to | B．contributed to | C．resulted from | D．devoted to |
The young mother couldn’t make herself ___ attention to because the baby was concentrating on his toys.
| A．to pay | B．to be paid | C．paid | D．pay |
The speech by the headmaster given on my graduation ceremony is strongly impressed ___ my memory.
| A．to | B．over | C．by | D．on |
If you ____________ Amy, ask her to come and see me as soon as possible!
| A．catch sight of | B．lose sight of |
| C．are in the sight of | D．are at the sight of |
With everything needed________，the host declared the start of their wedding.
| A．in the place | B．taking place | C．out of place | D．in place |