_______man must fear when travelling in space is radiation from the sun.
| A． Which | B． How | C． What | D． That |
相关试题
We tried to find a table for seven，hut they were all .
| A．given away | B．kept away |
C．taken up | D．used up |
______ a certain doubt among the people as to the practical value of the project.
| A．It has | B．They have |
C．It remains | D．There remains |
China has got a good ______for fighting against the flu with its careful and smooth organization.
| A．reputation | B．influence | C．impression | D．knowledge |
Many children，______ parents are away working in big cities，are taken good care of in the village.
| A．their | B．whose |
C．of them | D．with whom |
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