---Why is the woman crying there?---Because she is ______. Her only son is lost and no one can help find him now.
—Can you play ping-pong _____ basketball? —I can play ping-pong.
—Lucy, tomorrow is October 1st. I’m going to Kunming for the holidays(假日). —_____
—Could you ride a bike when you were 5 years old? —_____
What present did you give Carl _____ his birthday?
— _____ is your teacher’s desk? —It’s about 140 centimeters long.