一. 单项选择 (每小题1分，共15分)
从每小题所给的四个选项中，选出可以填入空白处的最佳答案。
( )1. — This is ______ useful guidebook.
— I agree with you. We may get lost without it.
A. a B. an C. the D. /
( )2. In my opinion, parents should get their kids to face difficulties ____ their own.
A. by B. on C. with D. for
( )3.Mrs Brown, don’t worry about D aming. He is old enough to take care of ______.
A. himself B. herself C. yourself D. itself
( )4. — Amanda, what’s your favourite subject?
— ______, though it’s not easy for me.
A. Autumn B. Chemistry C. Swimming D. Electricity
