写出下列单词的正确形式。
1. seven(序数词)---___________
2. student(复数形式)---_______
3. is(过去式)---_________
4. found(过去式)---_______

There are some colourful ____________   (balloon) in the sky.

看图，读短文，选择合适的单词填写在横线上。
see   countries   May   Chinese   eat
see   countries   May   Chinese   eat
Labour Day is on the first Monday of September in the U.S.

A．But it’s on 1.________ 1st in China. People celebrate Labour Day in both 2.________ .

The Lantern Festival is a traditional 3.________ festival. It’s on the fifth day of the first month in the Chinese calendar. People 4.________ Yuanxiao. They also 5.________ lantern shows at night.

I can’t see  in the sky. (   )

A．a moon

B．the moon

C．moons

改错题。
1. Here are two pear.
______________________.
2. How much is they?
______________________.
3. I’m on the classroom.
_______________________.