Robert is away. He _______ America since last week.

In the exam, the _________ you are,__________ mistakes you will make.

his life, Dickens wrote a large number of excellent novels in the 19th century, _____ some are still popular nowadays.

That kind of plant can be made ______ paper and paper can be made ______ wood

In no case ________ you are a senior two student.—My teacher has told me thousand times. Anything fresh