. ______we’ll be able to drive a car______ by electricity, solar energy in about ten years.
| A. Fortunately; driven |
B. Eventually; power |
| C. Luckily; commanded |
D. Hopefully; powered |
Walking alone in the dark, the boy whistled to ___ his courage.
| A．hold up | B．keep up | C．set up | D．take up |
Sleeping pills _____ be taken sometimes for a good night’s sleep but not so often that it becomes a habit.
| A．must | B．can | C．should | D．need |
I have no idea about what colours look good ____my skin.
| A．against | B．for | C．to | D．in |
_____with care, one tin will last for six weeks.
| A．Using | B．Use | C．Used | D．To use |
Those who have applied for the post ____ in the office.
| A．interviewing | B．are interviewing | C．to be interviewing | D．are being interviewed |