We would appreciate _______ if you could give us some advice on how to solve this problem.

________ you stepped into the lab with your shoes on? You’re supposed to take them off before you enter it. I told you so!

You can’t guess what difficulty I had_____ your home.

As the little boy ______ milk now, he doesn’t want to eat any other food.

If _______, I will go to visit your new house tomorrow.