—Do you think the thief entered through the back door? —No, if he had, I don’t believe he ______ the living-room window.
The book is not easy.____ it's rather difficult.
The number of the employees has grown from 1,000 to 1,200. This means it has risen ____20 percent.
He spoke loudly ____ the audience could hear him clearly.
What idea can a man who is blind from birth have_____ color?
I don' t know ____ to stay at home or go out.