My advisor encouraged ________ a summer course to improve my writing skills.
A, for me taking B, me taking C, for me to take D, me to take
In order to be _______ for Christmas, all these gifts must be mailed immediately.
| A．in time | B．at one time | C．at a time | D．in no time |
Two people were killed in the serious car _______ the other day.
| A．strike | B．break | C．crash | D．incident |
It is said that the temperature is unusual mainly _______ global warming caused by human activities.
| A．in spite of | B．by means of | C．in case of | D．on account of |
The transformation of our city will make _______ for people here to have a comfortable environment.
| A．it possible | B．no possibility | C．impossible | D．there was possibility |
Mary _______ her mother with the housework, but she didn’t.
| A．must have helped | B．ought to have helped |
| C．must help | D．should help |