Mr. Grey has two sons, ______ are famous dancers.
A. both they
B．both of them
C. they both
D．both of whom
What is the man going to do this summer
A. Work to earn extra money.
B. Work for the coming exams.
C. He won’t earn a little money.
What is the woman waiting for How often should the bus come to their stop
A. Every twenty minutes.
B. Every half an hour.
C. Once a day.
What does the woman advise the man to do
A. Solve it as soon as possible.
B. Count the time it needs.
C. Be patient with the problem.
微信支付 
支付宝支付