Only after a year ______ to see the results of my work.
A. I begin B. I began
C. did I begin D. began
My family like to travel. Mother prefers to take a bus to travel, while father ______ to travel.
A. stick to drive B. sticks to driving
C. stick driving D. sticks
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