–Dad, _____ we wait until the light becomes green?--Yes, we ______ . That’s the traffic rule.

 Your teacher ________ very angry at that moment because you talked back to her like that.

________ we go to the McDonald's? I'm sick of the food there.

 -Will the book I ordered arrive in time? -lt _______, if there is no traffic jam.

You had better ________some food and drinks before the field trip ________.