Now many crops can be improved ________different species of plant, such as rice, wheat.
| A．by making |
| B．by crossing |
| C．by converting |
| D．by changing |
－I don’t mind you what I know.
－You . I’m not asking you for it.
| A．to tell; mustn’t | B．tell; may not | C．telling; needn’t | D．telling; can’t |
－What about a drink after a busy day of work?
－.
| A．Good idea | B．Help yourself | C．Go ahead, please | D．Me, too |
He finally got sitting in an office all day, and longed for a more active life.
| A．interested in | B．tired of | C．pleased at | D．satisfied with |
Don’t trouble to look for my umbrella; it will some day in the future.
| A．turn out | B．turn down | C．turn off | D．turn up |
I don’t know the reason you were late for the meeting, but I’m sure someone will tell me you don’t want to explain.
| A．why; that | B．why; what | C．for which; which | D．for which; that |