当李雷知道明天是李明的生日时，他该说：
A.Nice to meet you !
B.Happy Teachers’day !
C. Happy Birthday to you!
They take their students the park .
| A．from | B．away | C．to | D．in |
He often helps his classmates their English .
| A．to | B．with | C．on | D．in |
We do a lot interesting things science class .
| A．on , in | B．for , on | C．of , in | D．an , on |
What’s wrong your child ?
| A．with | B．in | C．at | D．about |
Don’t worry your little brother .
| A．on | B．about | C．of | D．for |