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 wonder if she will show up at the concert .
----She will . She is only too _______to watch the famous director.
| A．anxious | B．proud | C．interested | D．satisfied |
--- Have you ___________ him to give up the job?
---Yes, I have. But he doesn’t listen to me.
| A．persuaded | B．suggested | C．advised | D．agreed |
That little boy has some trouble _______ in public.
| A．to speak | B．speak | C．speaks | D．speaking |
Yesterday she sold her car，______________ she bought a month ago.
| A．whom | B．which | C．that | D．where |
The whole family _______ to Shanghai for holiday next week.
| A．is going | B．are going | C．goes | D．have gone |