几道英语题 急1.This is our best price,__which we have concluded ma

几道英语题 急
1.This is our best price,__which we have concluded many orders. 填on 还是at
2.Chinese machine tool are recently selling fast in the Third World countries,of__the end-users are speaking highly.填which还是whom
3.The market is not___active this year as it was last year.填so还是such
4.We can't entertain your suggestion__it does not seem workable.填because还是for
5.Generally we cover insurance___definite instructions from our clients.填in absence of 还是in no absence of
6.
5.Generally we cover insurance___definite instructions from our clients.填in the absence of 还是in no absence of
少了一个the 是不是应该选前者啊