题目内容：

 

1.每个人多天生具有学习的能力。

Everybody is _________ ________ the ability to learn.

2.乘地铁虽然很方便， 但是常常很拥挤。

Taking the subway is ________， but it's often very ________.

3.他经常在语法方面犯错误。

He often ______  _______ grammar.

4.一旦做出承诺，就要遵守诺言。

Once you ________ ________ ,you should keep it.

5.你可以把这个单词和有趣的东西联系起来。

You can ________ the word __________ something interesting.

6.当地政府已经采取了措施来应对空气污染。

The local government ______ _______ _______ some measures to fight against air pollution.