People should _______ in most public places now.
A. 
B. 
C. 
– Everything is on sale. Let’s go and see.
– Great. We can buy what we like at the ________ price this time of year.
A. lowest B. cheapest C. low
He was offered a chance to work in a foreign country, but he ________ for his family.
A. picked up B. made up C. gave up D. looked up
—How much ______ the pair of shoes? —Twenty dollars _______ enough.
A. is , is B. are, are C. are , is
The volunteers sent books to a mountain village school on Children's Day.
A. two hundreds of B. two hundred C. two hundreds
At first, English was a big challenge for me, I could ________ understand what others said.
A. usually B. hardly C. ever
