My father _________ Beijing on business for three days. He will be back in two days.

We aren’t sure of the weather. We _______ sightseeing unless it_________ tomorrow.

Do you like the program ofA BITE OF CHINAII(舌尖上的中国2 )? – Yeah, the food is delicious. I want to it.

Tom, who taught Chinese before you came to China?－Nobody. I learned it by .

Where is Mike now？— Look! He _______the classroom.