Read and fill in the blanks.

A．up

B．to

C．down

D．open

1. Sit ______, please.
2. Stand ______, Li Tao.
3. Point ______ the window.
4. Please ______ the door!

当你想请同学指向椅子时，你可以这样说：(    )

A．Point to the chair, please.

B．Point to the chair.

看图完成下列对话和句子。
1. —When is Teachers' Day?
—________________.

2. Let's ________________ for our teachers.

3. It's ________________.

连词组句。
1. eat,   Let,   us,   this,   big,   watermelon,   (.)
__________________________________________________
2. it,   a,   cucumber,   Is,   (?)
__________________________________________________
3. the,   Eat,   apple,   (.)
__________________________________________________

—Look at the ________! (   )   
—Oh, its nose is long.

A．elephant

B．bear

C．snake