单项选择：
11.This one is too expensive.Let's find something ____ cheaper.
A.bit B.little C.a bit D.little bit
12.An awful accident ____ ,however ,occur the other day .
A.does B.did C.has to D.had to
13.Mr Brown is too busy to ____ our conversation,so you'd better not ask him.
A.attend B.join C.join in D.take part
14.All the flowers smelling sweet look ____ .
A.beautifully B.lovely C.wonderfully D.well
15.There are more than two ____ students in our school .Look!____ students are having a gathering on the square.
A.thousands of,hundreds of B.thousand,hundreds of C.thousand,hundred D.thousand of,hundred of
16.Tom offered to help do the housework ____ room and board here in the coming week.
A.by means of B.in exchange for C.in return for D.in charge of
17.Mr Herpin,____ here.Everybody else,stay where you are.
A.come B.comes C.to come D.coming
18.I'll spend half of my holiday practicing the piano and ____ half learning dancing.
A.another B.the other C.other's D.other
19.Shall we go out for dinner tonight?
—______
A.you are right B.it must be funny