Congratulations! Among the best pictures in the competition, I found _________. When did you draw it?—During the trip to the Yellow Mountain _________ May.

Where’s your brother? —-He _______ to Beijing for the training.

Next put all the ingredients in a big bowl and ________.

I called you yesterday evening, but nobody answered the phone. –Oh, I ___ a walk with my parents at that time.

It is only when agriculture is fully developed___________industry can have abundant materials and markets.