83.　 我认为英语比数学有趣的多。

I think English is ________ _______ ________ than math.

82.　 看！公共汽车来了！

Look! ________ ______ the bus!

81.　 There are about 1.3 billion people in China. (划线提问)

________ ________ population ______ China?

80.　 Work hard and you will pass the exam. (同义句)

If you ______ ______ hard, you will _______ in the exam.

Work hard _______ you will ______ ______ the exam.

79.　 I have already finished reading the book. (否定)

_______________________________________.

78.　 Let us write down the words, ________ ________? (反意问句)

77.　 Don’t play with fire, _______ ________ ? (反意问句)

76.　 这位作家正忙于写一本新书。

The writer is ________ ________ a new book.

75.　 这棵树有三米高。

This tree is _____ _____ _______.

This is a ____________ tree.

74.　 长江是世界上最长的河吗？

Is the Changjiang River one of _______ ______ ________ in the world?