29．Mr Brown arranged for the taxi to come at six_____she would not have to wait long at the station.
| A．so that | B．even if | C．before | D．Because |
Please ______ the numbers and I’m sure they will ______ more than 1, 000.
| A．add up; add to | B．add up; add up |
| C．add up; add up to | D．add to; add up |
The policemen had no ______ in finding the knife that the murderer had thrown.
| A．difficulty | B．troubles | C．problems | D．question |
An athlete can’t play balls well without severe ______.
| A．exercise | B．teach | C．education | D．training |
I ______ the time ______ so quickly.
| A．didn’t realize; had passed | B．don’t realize; passed |
| C．haven’t realized; passed | D．hadn’t realized; had passed |
______ terrible life the people in the mountains lived at that time！
| A．What | B．What a | C．How | D．How a |