相关试题
The population of Jiangsu __ to more than twice what it was in 1949. The figure is now approaching 74 million.
| A．has grown | B．have grown | C．grew | D．are growing |
Some of you may have finished unit one. _____ , you can go on to unit two. 
| A．If you may | B．If you do | C．If not | D．If so |
The government plans to bring in new laws _____ parents to take more responsibility for the education of their children.
| A．forced | B．forcing | C．to be forced | D．having forced |
The fact has worried many scientists ______ the earth is becoming warmer and warmer these years.
| A．what | B．which | C．that | D．though |
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