It was in the lab____ was taken charge of by Mr Harris ____ they did the experiment.
| A．which; that | B．that; which | C．which ; where | D．that; who |
相关试题
There is not much time left, so I’ll tell you about it．
| A．in detail | B．in brief | C．in general | D．in all |
If you’d like to succeed in the work, you must take gre
at to do it
| A．pain | B．pains | C．effect | D．effort |
I really appreciate some time to surf the Internet．But I am too busy．
| A．to have | B．to having | C．have | D．having |
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