Modern China is experiencing a completely new period__ respect for science and creativity has become the guiding principle of society．
| A．of which | B．where | C．in which | D．which |
They said that not all trainees would be suitable for the jobs _____ they were being trained.
| A．in which | B．for which | C．in that | D．for that |
This is the first time I ______, so I feel very curious about everything here.
| A．have been to this city |
| B．had been to this city |
| C．came to this city |
| D．come to this city |
Hearing the news, we did nothing but _____ silently.
| A．to sit | B．sat | C．to be sitting | D．sit |
Jack was interviewed by _____ Talk Show program last week and the interview was _____ success.
| A．the; a | B．/; a | C．/; / | D．the; / |
The children remembered to ______ themselves at first, but things went out of control minutes later.
| A．produce | B．behave | C．practice | D．enjoy |