Experts have found that the disease will lead to a greater increase in the number of sufferers unless ________ seriously when the symptom first appears.
The boss _______ department Ms King worked ten years ago looked down upon women.
He lived in London for 3 months, during his English improved a lot.
_______ has already been pointed out, grammar is not a set of dead rules.
He was hiding behind the door_______ he could see what was happening.
Carol said the work would be done by October, _______ Personally I doubt very much.