Have you heard of Earth Day ?—-Yes . The first Earth Day ______ in 1970 to educate us to protect our planet .

You look really cool in the new dress, dear. How much did you ________ it?

Why _________Beijing Duck?—Good idea. Let’s go．

How long have you learned English?—_____ about five years.[ ]

you spell “eraser”? — E-R-A-S-E-R