How many ______ medicine are used for the children of six years old

ank you for your help. ______ foryour help, I wouldn’t have succeeded in my experiment.

I wish that you ______ such a bad headache, then you would have enjoyed the concert.[ ]

Mum, must I wash the dishes right now—No, you ____.

What _____ Yu Ping usually _____ in her free time—She usually goes to the library.