—I do believe the scientific explanation that when a tomb is opened, the fresh air disturbs the viruses inside it. What about you?
—So do I. If _______ in, the disturbed viruses may cause illness or even death.
| A．breathing | B．breathed | C．being breathed | D．to breathe |
To our great surprise, Bill is no longer the naughty boy _________.
| A．what he used to be | B．that he used to be |
| C．what he was used to | D．who he was used to |
The graduate insisted that he _______ to the West to teach the children there and that what he chose ______ right even though his parents didn’t want him to go.
| A．should be sent; should be | B．send; be |
| C．was sent; was | D．be sent; was |
It takes ______ diligence to learn all the subjects well．It takes brains, too.
| A．other than | B．less than |
| C．more than | D．rather than |
---Is your uncle Tom a soldier?
--- No, but he once _____ in the army for 4 years.
| A．served | B．is serving | C．has served | D．had served |
---- Did you ______ the concert yesterday evening?
---- Sorry, I didn’t have enough time．I really regret ______ my homework earlier.
| A．attend; not to finish |
| B．join; not finishing |
| C．take part in; having not finished |
| D．attend; not having finished |