I find _____ not easy to answer this question in English.
| A．that | B．it | C．its | D．this |
There is ________ useful book on the desk， _________ useful book belongs to my brother．
| A．a; the | B．an; the | C．a; an | D．an; a |
Could you tell me________?
| A．when did Tom come back | B．when does Tom come back |
| C．when Tom will come back | D．when Tom come back |
Smoking will_______ your health.
| A．be good for | B．good at | C．be bad for | D．bad at |
Now many people are________ in playing_______ games on the Internet.
| A．interested; interesting | B．interesting; interested; |
| C．interested; interested; | D．interesting; interesting; |
It is important_______ you_______ out for a walk after supper.
| A．of ; to go | B．to; to go | C．for; to go | D．for; going |