1、This tour along the east coast of America allows you, as it____,to live through the most dramatic events of the American Independent War.
A. be
B. was
C. were
D. is
2、The consequences of this ill-advised policy are already known to all of us here, ____ to say that we have suffered more losses in this month than in the three previous years.
A. it suffice
B. suffices it
C. suffice it
D.it is suffice
3、To the general astonishment the newly elected chairman abruptly interrupted the heated discussion, saying "I move that the meeting____"
A. is adjourned
B.were adjourned
C.have adjourned
D.be adjourned
选什么。为什么选?语法解释?
谢谢了。感激不尽。