The pilot asked all the passengers on board to remain ______ as the plane was making a landing.
-----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?-Not she has finished her paper.
Water, _______enough, can change into vapour quickly.
The man stopped from time to time_______whether he was being followed.
Doctors have said that as many as 50% of patients don’t take medicine_______.