1.A:Did you call the service center?

1.A:Did you call the service center?
B:Yes.The woman on the phone explained how _______ the temperature setting for the freezer.
A.can we change
B.change
C.to change
E .changing
这道题我选了A 因为how一般用在连接词＋主语＋谓语.连接词在从句中作宾语、状语或表语,可是正确答案是C,
2.Salesperson:Now,here we have a marvelous table.It can serve as a dining table,a card table,and a ping pong table.
Customer:Really?_______?
A.How it works
B.How does it work
C.How to work it
D.How works it
这道题我选了A但是正确答案是B,
3.Pierre is a long-distance cyclist.He always carries bottled water or fortified beverages when he rides.It is essential that he _______ plenty of fluids during his long activity so that he won't become dehydrated.
A.drink
B.drank
C.will drink
D.are drinking
这道题我选了C,正确答案是A,
4.Our teacher encouraged everybody's participation in the debate,but he insisted that everyone _______ respect for the opinions of others.
show
showed
showing
shows