—How many computers are there in the room?—__________. Some workers moved them to another place just now.
—What a nice classroom! —It _____ every day. A.is cleaningB.has cleanedC. is cleaned
We have two ears and one mouth so that we can listen ________we speak.
Do you mind your dictionary to me?
Li Hua is taller than _________in our class.
I hope ______ a role in ____the result.