SC questions of today :)

1.P201
The Forbidden City in Beijing, from which the emerors ruled by heavenly mandate, was a site (which a commoner or foreigner could not enter without any permission), on pain of death.
B. which a commoner of foreigner could enter without any permission only
C. which no commoner of foreigner could enter without permission
D. which, without permission, neither commoner or foreigner could only enter
E. which, to enter without permission, neither commoner of foreigner could do
书上的答案是C,但是我觉得意思不可理解.从句意上来讲,应该是B——"只有以死亡作为代价，a commoner of foreigner才能不经允许进入紫禁城"。但是only后面的逗号又像是多余的。哪位解释来听听。

2. P229
It may be another fifteen years before spacecraft from Earth (again venture to Mars, a planet now known to be) cold, dry, and probably lifeless.
B. venture to Mars again, a planet now known for being
C. will venture to Mars again, a planet now known as being
D. venture again to Mars, a planet that is known now to be
E. will again venture to Mars, a planet known now as being
书上的答案是A,我选C. A的时态有问题,而且,即使是一般现在时,也应该用ventures. C和E我有点吃不准,C中的again放在Mars和后面的同位语中间,有点分隔的感觉,而E中now的位置也不太好.听听大家的意见.

[em06]