— The woman biologist stayed in Africa studying wild animals for 13 years before she returned.
— Oh, dear ! She ______ a lot of difficulties !
| A．may go through | B．might go through |
| C．ought to have gone through | D．must have gone through |
Do you know the difficulty he had _______the work?
| A．on finishing | B．to finish | C．finishing | D．finished |
_________ get such a book?
| A．Where do you think can I | B．Do you think where can I |
| C．Where do you think I can | D．Do you think where I can |
______large number of people are out of work now and______ number of people out of work is still growing up.
| A．The; a | B．A; a | C．The; the | D．A; the |
Your handwriting is all right, _______, you can do it better in my opinion.
| A．but | B．however | C．while | D．instead |
25. I don’t like the way _________ he speaks to his mother.
| A．which | B．in which | C．of | D．to |