——We really shouldn’t use plastic bags any more when shopping.——_____ It’s important to protect our environment.
—Professor Wang ______ to give us a talk next week.—Really? That’s good news.
-How clean and tidy your bedroom is! -Thank you. It ________ every day:
-What are you going to do this Sunday? -I ________ yet.
—When did you ____ the top of the mountain?—At 11;45 a.m.
—Have you found your watch? —No, it is ______to see anything in the hole.