They usually have the medicine __________ before putting into the market all over the country.
| A．testing out |
| B．to be tested out |
| C．being tested out |
| D．tested out |
---Any advice for me?
---You’d better the timetable to see when the train leaves.
| A．consult | B．recommend | C．remind | D．request |
If traffic moves at low speeds, the number of accidents is.
| A．pulled back | B．cut down | C．turned down | D．got away |
—Who______ it be that is knocking at the door? —It ______ be Father, but I’m not sure.
| A．can; must | B．can; may | C．must; can | D．may; must |
---Do you mind if I keep pets in this building?
--- _________.
| A．Of course not. It’s not allowed here. | B．I’d rather you didn’t, actually |
| C．Great! I love pets. | D．No, you can’t. |
---How bright the sun is!
---You’d better wear your dark glasses to_____ your eyes from it.
| A．protect | B．prevent | C．keep | D．stop |