— How much are these socks?
—______ two dollars.
| A．It’s | B．They’re | C．They | D． It |
Don’t worry! I ____ your best friend who will do as far as I can to help you.
| A．is | B．am | C．were | D．was |
By the first day of August, 2007, the PLA has its ______ birthday.
| A．eighty | B．the eightieth | C．eightieth | D．eighties |
—Our Chinese diving team won a gold medal again!
—What _____ good news!
| A．a | B．an | C．the | D．/ |
The restaurant is so popular here. Look, there are so many _____ here.
| A．food | B．dish | C．people | D．waiter |
The Sydney Opera House is like a huge sailing boat with water ____ three sides.
| A．at | B．of | C．in | D．on |