_____earth scientists understand how and why earthquakes happen, forecasts are usually inaccurate.
| A．As | B．While | C．Because | D．If |
I’d like a room _____ window looks out over the sea.
| A．that | B．in which | C．whose | D．which |
He pretended __________when his mother stepped into the room..
| A．to study | B．studying | C．to be studying | D．to have studied |
The stamps were __________ according to their styles and features.
| A．found out | B．turned out | C．put out | D．sorted out |
Don`t worry! We are all prepared to ____________ all of the problems that may _________.
| A．do with；rise | B．deal with;arouse | C．do with;raise | D．deal with;arise |
The day he had been looking forward to______________at last.
| A．come | B．came | C．coming | D．comes |