一Mum,I've got a bad headache!一Oh,______.Take this medicine three times a day and you'll be OK.
Dr. Ma is strict ______ local doctors and nurses, especially________their skills.
---When did you go to bed last night? ---______________
It rained so_______ that people could _______ go out yesterday morning.
—I find the more we study, the more difficulty we have _______ out Maths problems. —Oh, I agree with you. Maths is more and more difficult.
_____ Jack ______ Jim has been to China, but _____ of them knows much about China in fact.