Without facts,we can’t form a correct opinion,for we need to have actual knowledge____ our thinking.
--–Can I speak to Mr Wang, please? --________.
-----Have you got any particular plans for the coming holiday? ----- Yes, _______, I’m going to visit some homes for the old in the city.
Shall Mary come to the concert with us? -Notshe has finished her paper.
Water, _______enough, can change into vapour quickly.
The man stopped from time to time_______whether he was being followed.