There is a mountain_____the top is always covered with snow.
| A．whos | B．of which | C．its | D．that |
Let’s visit the bookstore on our way back home,？
| A．shan’t we | B．won’t you | C．shall we | D．will you |
I asked two people to help me start my car , but of them knew what to do .
| A．either | B．none | C．both | D．neither |
He took the machine to pieces to find out how it .
| A．progressed | B．operated | C．equipped | D．managed |
Americans eat ____ vegetables per person today as they did in 1910.
| A．more than twice as many | B．more than twice | C．as twice as many as | D．twice as many as |
Is ____ three hours ____ the boy___ family is poor to come to school on foot?
| A．it, that, shoes | B．it, when, that | C．it for, that it takes, whose | D．it, that it takes, whose |