Time goes by so fast . We must never miss the chance to show love for our parents and make them _____ how much they mean to us .
—TV says there will be a storm tomorrow.—___________, I planned to go climbing with my classmates.
Smile to the world, ___________ the world will smile back to you.
—What do you often pay attention to when you learn English?—___________.
The lady ________ dancing as a hobby in her sixties, and she is really good at it now.
In the old days, cows ________ farm work.