—Why are you standing there, Maggie?—I can’t see the blackboard clearly. Two tall boys are sitting me. A. behind B. in front of C. beside
I saw John ________ near the river on my way home.
—I'm very tired these days because of studying for physics. —Why not ________ music? It can make you ________.
—Hi, Tom! Can you tell me when ________ for London? —Yes, tomorrow afternoon.
Xiao Li said she would rather ________ join us.
Doctors tell people ________ their hands often and to stay home if they feel ill.