______, there must be life on other planets though none has been discovered.—I agree with you. The universe is so large after all.

Catherine, I’ve cleaned the room for you. — Thank you. You _____ it. I could manage it myself. [ ]

－I have great_____ in learning math and I’m so worried. Could you help me－Sure. I’d beglad to.

You ______have written such a long article.The teacher said 100 words would be enough.

1—–Do you remember ______me somewhere in Shanghai ——Ofcourse. Two years ago.