---Congratulations! Among the best pictures in the competition,I found . When did you draw it?---During the trip to the Yellow Mountain _______ May.
Only four days remained ____ the exam.
Be careful when you go ____ the street because the traffic is very busy at the moment.
–When do you usually get up, Xiaoli? –____ 6:30 in the morning.
The engineer will return from Macao ____ a few days.
–When will Mr. Black come to Beijing? –____ September 5.