24 That was so serious a matter that I had no choice but ---

24 That was so serious a matter that I had no choice but ________ the police.
A) called in B) calling in
C) call in D) to call in
中间有个but让我不确定考点是什么~
34 We gave out a cheer欢呼 when the red roof of the cottage小屋 came __________ view.
A) from来自 B) in 进来;上任;得名次
C) before 比...重要D) into
came
37 Careful surveys检验 have indicated 表明that as many as 50 percent of patients do not take drugs药品 ________ directed经指导的.
A) like B) so
C) which D) as
不明白这句意思,为什么选D类?
38 In developing countries people are ________ into overcrowded cities in great numbers.
A) breaking B) filling
C) pouring涌流 D) hurrying
46 A love marriage,however,does not necessarily ________ much sharing of interests and responsibilities.
A) take over接管 B) result in 导致
C) hold on 保持D) keep to 坚持；遵守
48 I’m not sure whether I can gain any profit from the investment,so I can’t make a(n) ______ promise to help you.
A) exact 确切的；精确的 B) defined清晰的
C) definite明确的 D) sure 确实的
四个选项的区别是什么
49 I have kept that portrait相片 ____________ I can see it every day,as it always reminds me of my university days in London.
A) which B) where
C) whether D) when
这是什么从句?选哪个?
24题答案是D...奇怪为什么加TO捏
46答案是B 还是不确定句子意思..
48答案是C ....明确的承诺?
...这都是四级题...是96年1月的..有解析的话更好了!90年到99年的~