1.Orlando, a city in Florida, ________ for its main attraction, Magic Kingdom.
A) which is well known
B) is well known
C) well known
D) being well known
2.He is ________ a writer as a reporter.
A) more
B) rather
C) not so much
D) not much
3.Jim is sorry ________ so impolite to your guest last Saturday.
A) to be
B) having been
C) being
D) to have been
4.I suppose that when I come back in ten years’ time all these old houses ________ down.
A) will have been pulled
B) will have pulled
C) will be pulling
D) will be pulled

1.B 2. C3. D 4. A

请教：
1为什么A不对亚？
3为什么B不对亚？