—Will a pencil______
—I'm afraid not. Only a pen can be used in the exam.

单项选择题Last year the number of students who graduated with a driving licence reached 200,000, a(n)（）of 40,000 per year.

A.average
B.number
C.amount
D.quantity

单项选择题Up to now, the program______thousands of children who would otherwise have died.

单项选择题The idea came to me when I ______ with him.

单项选择题How much ______ she looked without her glasses!

单项选择题Unless he ______ to help us, we shall lose the game.