We've just moved in to a bigger house and there's lot to do. Let's（）it.

单项选择题Don't be 'afraid of asking for help ______ it is needed.

单项选择题______ new buildings will be built in my hometown.

单项选择题—I'm going back to see my parents this afternoon. —______.

单项选择题—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