_____ the fact that his initial(开始的)experiments had failed, Pro. White persisted (坚持) in his research.
| A．Because of | B．As to | C．In spite of | D．In views of |
29. New ways _____ to prevent the river _____.
| A．have found out, from polluting |
| B．have found, from being polluted |
| C．have been found out, from being polluted |
| D．have been found, from being polluted |
28. The first thing she did _____ up to her trainer and thanked her.
| A．was go | B．was going | C．and went | D．Go |
27. The boy gathered all his _____ to stand up.
| A．strength | B．power | C．force | D．Energy |
26. We were all waiting for you. You _____ for the seaside by yourself without
leaving a message.
| A．mustn’t leave | B．shouldn’t have left | C．could not have left | D．needn’t leave |
25. Though he is still a child, he has already read _____ 1,000 books.
| A．so much as | B．as many as | C．as much as | D．so many as |