Mike apologized for _______ to inform her of the change in the working plan.
| A．his being not able | B．him not to be able | C．his not being able | D．him to be not able |
—The authors of computer viruses are geniuses.
—I agree. If they applied their wisdom to other net technologyhuman beings can benefit, it would be better.
| A．in which | B．through which | C．from which | D．during which |
The winter of 2008 was extremely bad.most of people say it was the worst winter of their lives.
| A．In general | B．In a word | C．In all | D．In fact |
No one helped me . I did it all myself .
| A．for | B．by | C．from | D．to |
To understand the grammar of the sentence，you must break it______ into parts．
| A．down | B．up | C．off | D．out |
The classroom is big enough, but we’ll have to move if we have more students.
| A．for the moment | B．on the moment | C．in a moment | D．for a moment |