My mind wasn't on what he was saying，so I'm afraid I ________ half of it.
| A．was missing | B．had missed |
| C．will miss | D．missed |
What a wonder! They have finished _______ half of the project in such a short time.
| A．no more than | B．no less than | C．not more than | D．much less than |
The film _________ a novel by Sinclair Lewis.
| A．is based on | B．based on | C．basing on | D．base |
Today,_________ rapid transportation and communication , the whole world seems to be smaller.
| A．regardless of | B．in spite of | C．instead of | D．because of |
The government requested that all the people ___________ in any indoor public area.
| A．not to smoking | B．not smoke | C．not smoking | D．to not smoke |
Scientists study ___________ human brains work to make computer.
| A．when | B．how | C．that | D．whether |