—How could you________ my mother so easily in the crowd?
—Because she stood out in her red dress.
| A．pick up | B．pick out | C．take up | D．take out |
—Good news ! There's a supermarket in this area next month!
—Cool! It will be convenient for us when it's open
| A．building | B．built |
| C．having built | D．to be built |
My uncle has a large greenhouse in his garden he grows vegetables in winter
| A．which | B．where | C．when | D．whose |
You'd better prepare some candles at home the power fails．
| A．even though | B．in case |
| C．as long as | D．in order that |
—Can you give me a ride?
—Sorry． There is no room in my car．
| A．to leave | B．leaving |
| C．left | D．being left |
Charles entered New York University in 2009 and one year later to University of London as an exchange student
| A．sent | B．had sent |
| C．was sent | D．had been sent |