It has been announced that passengers ____ remain in their seats until the dangerous subjects have been removed.
| A．can | B．will | C．may | D．shall |
______could be judged from her eyes that she was terribly sorry for what he _____.
| A．As; had done | B．That; did | C．As; did | D．It; had done |
—Why do you suggest the West Lake?
—I believe __beauty of ___ nature there will make__excellent impression upon you.
| A．the; /; the | B．the; /; an | C．a; the; an | D．the; the; an |
______ on time, or you’ll be fired.
| A．Arriving | B．If you arrive | C．Arrive | D．to arrive |
________ from the top, the city looks more beautiful.
| A．To see | B．Seeing | C．Seen | D．See |
One learns a language by making mistakes and________ them.
| A．correct | B．correcting | C．corrects | D．to correct |