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 |
Welcome to our online mall! If you buy ______iphone4 here, you can get a watch for _____free.
| A．a; / | B．an; the | C．an; / | D．the; the |
—_______ for Beijing?
—Yes, and I’ll come back in two months.
| A．Have you left | B．Are you leaving | C．Do you leave | D．Did you leave |
Thank you for persuading my mother _______ the army.
| A．let me join | B．letting me join | C．to let me join | D．to let me to join |
—Does he know how to work out the problem?
—Yes, he has _______ a good idea to solve it.
| A．caught up with | B．kept up with | C．come up with | D．put up with |
The police stopped the car______ speed was more than 120km per hour.
| A．whose | B．which | C．of which | D．that |