An awful accident, however, _____occur the other day.
| A．does | B．did | C．has to | D．had to |
To keep healthy, Professor Johnson________ cycling as a regular form of exercise after he retired.
| A．took up | B．caught on | C．carried out | D．made for |
Some experts say ____ birthrate of China, after the one-child policy is relaxed, can see ___ modest increase in future.
| A．the, a | B．a, a | C．a, / | D．the, / |
---Well, guess what! I came across my primary school teacher when I was visiting the Frick Collection in Manhattan.
--- Really? ________.
| A．It’s really a piece of cake. |
| B．It’s a small world. |
| C．It’s a long time. |
| D．It’s a once-in-a-lifetime chance. |
If you know_____ what you want, the best way to get a job is to receive some proper training for it.
| A．specially | B．exactly |
| C．frequently | D．responsibly |
As for your complaint about the defective shoes, sir, I will speak to the person _______ and ask him either to give you another pair or to give your money back.
| A．in charge | B．in return |
| C．in search | D．in trouble |