______ difficult the problem was, he tried his best to solve it.
| A．No matter | B．Although | C．Whatever | D．However |
32. What the leader referred to in the report was really something _______.
| A．worthy to be considered | B．worth to be considered |
| C．worthy of considering | D．worth being considered |
31. After he retired from office, Rogers _______ painting for a while, but soon lost interest.
| A．saved up | B．took up | C．kept up | D．drew up |
30. Rather than ______ that film, I would rather ______ at home. 
| A．to see; to stay | B．seeing; staying | C．see; stay | D．to see; stay |
29._____ that they had to stay at home all day. 
| A．So the weather was terrible | B．The weather so terrible was |
| C．So terrible was the weather | D．So was the terrible weather |
28. John may come to see me tonight. I can’t go to the movie with you______he visits.
| A．as long as |
B．in order that | C．because | D．in case |