He hurried to the booking office only ________ that all the tickets has been sold out.
A．to be told B．to tell C．told D．telling
—Can those ________ at the back of the classroom hear me?
—No problem.
A．seat B．sit C．seated D．sat
Reading is an experience quite different from watching TV; there are pictures ________ in your mind instead of before your eyes.
A．to form B．form
C．forming D．having formed
—The last one ________ pays the meal.
—Agreed!
A．arrived B．arrives C．to arrive D．arriving
If water becomes increasingly scarce in decades ________，water shortage will become a hot issue all over the world.
A．coming B．having come
C．to come D．to be coming
If there is a lot of work ________， I'm happy to just keep on until it is finished.
A．to do B．to be doing
C．done D．doing
