1. (2019四下·惠阳期中) 在方框里选择合适的单词补全句子

is         in             PE         to         first

1. （1） The library is on the floor.

   

3. （2） —What time is it?

   —It's 9 am. It's time for class.

   

5. （3） —Is this a library?

   —Yes, it .

   

7. （4） It's sunny Hainan today.

   

9. （5） It's time to go bed.