I think there will be more tall buildings ____ 10 years. A. after B.at C. in
—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.
—How well she sings! —Yes, she has a very sweet ________.