She hung up the receiver. This means she______.
A.let it hang | B.didn’t put it back |
C.held it | D.put it back in its place. |
These viruses, if ________ in, can result in illness or even death.
A.breathing | B.breathed | C.breathe | D.to breathe |
Please take down my telephone number ________ something important happens.
A.in case | B.now that | C.even though | D.as if |
Mountain climbing ________ be very tiring, and many people feel sick ________ the atmosphere gets thinner.
A.may; while | B.can; as | C.must; though | D.should; for |
It is generally considered unwise to give children ________ they wants.
A.however | B.no matter how | C.whatever | D.no matter what |
Without facts, we cannot form a worthwhile opinion for we need to have a factual knowledge ________ our thinking.
A.which to base on | B.which to be based on |
C.on which to be based | D.on which to base |