Every minute about ____ babies are born in the world, so the world’s population is increasing by _____million every year.

_____ weekends we go to school _____ 7 o’clock.[ ]

What are people supposed to do when they meet ________the first time? —They are supposed to bow. [ ]

I kept looking at the man, wondering _______.

Our history teacher is very ______ with us. He doesn’t allow us to be lazy.