by a greater demand for vegetables,farmers have built more green houses.
| A． | Driven | B． | Being driven |
| C． | To drive | D． | Having driven |
If you go by ______train ,you can have quite a comfortable journey ,but make sure you get _____fast one.
| A．/, / | B．/, a | C．the, a | D．/,/ |
______recent report stated that the number of Spanish speakers in the U. S . would be higher than the number of English speaker by_____ year 2090.
A, the B. A, / C. The ,/ D. The, a
As we all know．____life is hard for any of us. If we live___ happy life，we must all work harder.
| A．／：／ | B．／；a | C．a；／ | D．a；a |
一 What in ____ world do you like most in _____ world?
一 I hope _____ world is _____peaceful and fair world.
| A．the；the；the；the | B．／；the；the；／ |
| C．／；the；the；a | D．the；the；the；a |
—What is ______ population of China?
—China has ____population of l．3 billion．
A．the；the B．a；a C．a；the D the；a