____ happened to be no one in that house when the typhoon hit the area.
| A．It | B．There | C．This | D．That |
. If you can’t release your unpleasant past, you may create a vicious cycle(恶性循环)negative influence and feelings are reinforced(加强 ).
| A．which | B．that | C．when | D．where |
. For safety’s, I advise you not to stay out too late.
| A．concern | B．sake | C．comfort | D．reason |
The beauty ofnature shocked the trave11ers, and many of them have got new experience from the travel.
| A．×、× | B．the, a | C．the、× | D．×、a |
It ______ last night ______ Tom saw an interesting film in Dongfeng Cinema.
| A．is; that | B．was; that | C．was; which | D．was; who |
Only when class began ______that he had left his book at home．
| A．will he realize | B．he did realize | C．did he realize | D．had he realized |