In addition to the farming they ______ since the 1990s, the Smiths have started a small business.
| A．have done | B．had been done |
| C．were doing | D．have been doing |
.
Every year in April, the Water Festival ______ among the Dai people in Xishuangbanna.
| A．celebrates | B．is celebrating | C．is celebrated | D．is being celebrated |
.
. ________the cake________five parts. We will share three of them and leave the rest to Jack.
| A．Separate …from | B．Take …from | C．Divide … into | D．Divide …from |
.
Most girls prefer nice clothes________ nice food.
| A．of | B．for | C．with | D．to |
.
Clearly, in a system ______________ every decision is made on the basis of tradition alone, it may be difficult to achieve progress.
| A．that | B．when | C．where | D．which |
.
It's reported that in the past 50 years around 80 percent of Beijing's courtyard houses ___________.
| A．had wiped out | B．have wiped out |
| C．had been wiped out | D．have been wiped out |