一选择题
从每小题所给的四个选项中，选出可以填入空白处的最佳答案。
( )1. Beijing has go t_____ population of more than 13.8 million.
A. the B. a C. an D. /
( )2. In hot summer, we should pay attention to protecting ourselves _____ strong sunlight.
A. from B. for C. with D. to
( )3. The _____ traffic stopped me from going to school on time yesterday. I was late!
A. heavy B. crowded C. fast D. quick
( )4.---- How long does it ________you to go to school by bus every day?
-----Ten minutes.
A. take B. spend C. pay D. cost
