There （） a blackboard and many desks and chairs in the classroom.

单项选择题Small （） it is, the wallet is convenient to take with.

A、 as
B、 so
C、 if
D、 because

单项选择题I （） go to school either by bike or on foot.

A、 am used to
B、 used to
C、 used
D、 am used