--What color is it? --- .
—Why are you so frustrated, Ben? —I was late for class again. I’m afraid Miss Li will be _________ me.
—Do John and Betty have a child? —Yes. They _______ for twenty years.
—Tina failed in the math test. She looks very sad. —Let’s come to cheer her ________.
—Is the woman over there Miss White? —It ______ be her. She’s gone to Hangzhou.
—Hurry up! The bus is coming. —Wait a minute. Don’t cross the street _______ the traffic lights are green.