We should protect the earth because it’s home to _______animals .
| A．million | B．millions |
| C．million of | D．millions of |
I ____my school ID card at home. May I go home and get it?
| A．forgot | B．remembered |
| C．left | D．missed |
____________ Davy called me, I was sleeping.
| A．Until | B．When |
| C．While | D．Because |
Clean-Up Day is coming. How to let more people know it?
We could ______ advertisements after school.
| A．call up | B．put off |
| C．hand out | D．think up |
ou could ask the teacher for help.
________________ Teachers are always helpful.
| A．I think so. | B．I disagree. |
| C．I am afraid not. | D．I don’t think so. |
-- My dream is to be a scientist.
--- Sounds good. I hope it will .
| A．come on | B．come in |
| C．come true | D．come out |