A few _____ looked at him curiously when he suddenly stopped and burst out crying.
| A．passers-by | B．passer-bys |
| C．passers-bys | D．passer-by |
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 |