_________ the whole process for the studies of cancer took more than a year, the technology is moving so fast that it will soon take just weeks．
| A．How | B．Because | C．If | D．While |
Rarely______others for help.
| A．he asked | B．he asks | C．did he ask | D．asked he |
Tane is timid. Whenever she sees the mouse or a snake, she loses her ____and screams out.
| A．heart | B．face | C．head | D．temper |
Tom’s mother was very____when he didn’t come back on time after school.
| A．eager | B．patient | C．anxious | D．worrying |
The color of the shirt doesn't _______ you..
| A．fit | B．suit | C．match | D．suitable |
The doctor told him to take a fat-free ________.
| A．food | B．diet | C．health | D．vegetable |