It was in the lab, _______ was taken charge of by Mrs Smith, they found the missing necklace.
| A．where; that | B．that; that | C．which; that | D．which; where |
It isn't so much whether he works hard; the question is whether he works _____.
| A．above all | B．in all | C．at all | D．after all |
The magician picked several persons from the audience and asked them to help him with the performance.
| A．by accident | B．on occasion |
| C．at random | D．on an average |
The author of the report is well _____ with the problems in the hospital because he has been working there for many years.
| A．acquainted | B．informed | C．enlightened | D．advised |
When I took his temperature, it was two degrees above _____.
| A．average | B．ordinary | C．regular | D．normal |
Even if they are on sale, these refrigerators are equal in price to, if not more expensive than, _____ at the other store.
| A．anyone | B．the others | C．that | D．the ones |