More and more people in Shanghai are able to talk and write _____ English these days. [ ]

Mike, can you tell us something about our new teacher?– Oh, sorry. I know nothing because I _____________ him before.

What do you think of Mike?-A nice boy! __________ a monitor, he not only studies hard but also likes helping his classmates.[ ]

There ____ lots of milk in the cups.

It is very important for us to _______ between good and bad.