How____ shall I take the medicine?—Once a day. [ ]

I could tell by the way ____ he looked at me____ he was annoyed.–So don’t play such tricks on him any more.

If you’re strict with yourself, you_____ great progress.

Hello, can I speak to Huang Yi, please?—Sorry, we don’t have ______________Huang Yi here, you dialed a wrong number.

There are many things _____.[ ]