It is the first time that I_____ the night face to face.A. have seen B.had seen C saw. D.see
The man and the horse _____ fell into the river were drowned.
The question is very important. It really needs _______.
Follow the directions on the bottle carefully when _______.
Do you think ______ important _______ us to learn a foreign language?
-----I think it _______ to smoke . ------ _______.