Don’t leave the water ____ while you brush your teeth.
| A．run | B．running | C．being run | D．to run |
No matter how _____, it is not necessarily lifeless.
| A．a desert may be dry | B．dry a desert may be |
| C．may a desert be dry | D．dry may a desert be |
---Guess what, we’ve got our visas for a short-term visit to the UK this summer.
---How nice! You ______ a different culture then.
| A．will have experienced | B．have experienced |
| C．have been experiencing | D．will be experiencing |
We had a wonderful performance in the annual school sports meeting. Not only ___ in the coming relay race, but also we were the runner-up of the tug-of-war.
| A．won we the champion | B．we won the champion |
| C．the champion we won | D．did we win the champion |
___ is the most useful invention?
| A．Do you think which of these | B．Which of these you know |
| C．Which of these do you know | D．You know which of these |
We know such people are not ___.
| A．to rely on | B．to be relied upon | C．to be relied | D．to rely upon |