As is known to us, theory is based on practice and servers practice.
A. by chance B. in turn C. in return C. by turn
相关试题
On a _____ morning the little girl was found _____ at the corner of the street.
| A．freezing; freezing | B．freezing; frozen | C．frozen; frozen | D．frozen; freezing |
We had to _________ the engine piece by piece for transport.
| A．take up | B．take out | C．take off | D．take apart |
The little boy was in danger. The doctors and nurses are doing him.
| A．what they can do help | B．everything they can help |
| C．what they can to help | D．all what to help |
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