27. _____ the teacher came in, everyone was quiet.
| A．Direct | B．Directly | C．Directly when | D．Direct when |
相关试题
All of us found _____ necessary to learn a foreign language.
| A．this | B．that | C．it | D．what |
I used to _____ bed at nine. Now I am used to ____ bed at ten.
| A．go, going | B．go to, going to | C．go to, go to | D．going to, going to |
The life of Milu ____ at present.
| A．is been studied | B．is being studied | C．was being studied | D．have been studied |
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