He didn’t attend the meeting last night, _________ he doesn’t know our plan for the picnic.
| A．that’s why | B．that’s because | C．which is why | D．which is because |
. Someday, all our hard work will .
| A．turn out | B．pay off | C．work out | D．turn to |
—Hello! May I speak to Tom, please?
—Yes, speaking.
—Oh, I______your voice at first.
| A．don’t recognize | B．didn’t recognize |
| C．hadn’t recognized | D．haven’t recognized |
Matt is now getting on very well with his new job and he earns ______ he did last year．
| A．twice as much as | B．as twice much as |
| C．twice as many as | D．as twice many as |
In my opinion, it’s the best use that could be ______ this machine.
| A．made into | B．made from | C．made of | D．made with |
The fire was finally brought under control, but not______ heavy damage had been caused.
| A．before | B．after | C．since | D．until |