We'll never give up working on the experiment (实验), ______ difficult it is.
A. no matter how B. no matter how many
C. no matter what D. no matter where
After class, students ______ clean the chalk off the blackboard.
A. was excepted to B. are supposed to
C. are important to D. was polite to
The fish on the table ______. I want to eat it right now.
A. smells good B. smells bad
C. smells well D. smells badly
In this hotel, we have two rooms to live in, but we can’t decide ______.
A. chose which one B. to choose which one
C. which one to choose D. which one to chose
Children these days ______ their parents too much. They should learn how to look after themselves.
A. get on B. keep on C. fight on D. depend on
He drives in heavy traffic every morning. He’s tired of ______ a place ______.
A. finding out, to park his car
B. finding, to park his car in
C. looking, to park his car at
D. looking for, to park his car
