Stand over there ,___you will be able to see the oil painting better.
A. but B. till
C. and D or
Below ____ an article about advertisements ____ by a student for her English project.
| A．are; writing | B．be; to be written |
| C．being; written | D．is; written |
_____ an ad does not lie, it does not mean it is altogether innocent.
| A．Even if | B．As if |
| C．If | D．Now that |
She set off at 9 a.m. and ____ the airport an hour later.
| A．will reach | B．would reach |
| C．had reached | D．reached |
If ____ in, viruses can result in illness or even death.
| A．breathe | B．breathing |
| C．breathed | D．to breathe |
By the 1920s, Howard Carter ____ an explorer.
| A．has become | B．had become |
| C．became | D．would become |