May I have a rest? I have already finished ______ the report.
Rose, you are so thin. You should eat more,_______ you’ll make yourself ill.
---I always have difficulty in ________new words.----Why not _____ your English teacher for help.
Many people didn’t realize the importance of health _______they have fallen ill.
---Let’s go to Kunming for vocation. It’s _________too hot ________too cold there.
---Do you know Robert?----Yes, He is ________ university student. He likes sports and runs for ___________ hour every morning.