-Could I use your bike, Jack?
--Of course, you____________.
| A．can | B．may | C．could | D．might |
—What happened to you on your way back to the hotel last night ?
—I lost my way in complete darkness and ,__________ things worse , it began to pour .
| A．making | B．to make | C．having made | D．made |
Comparison may make something appear more beautiful than it is when _________ alone.
| A．to see | B．seeing | C．is seen | D．seen |
—Where is our English teacher?
—She is in the classroom, _____ the exercises _________ the students have done at home.
| A．explaining; / | B．explaining; for |
| C．explained; to | D．explained; from |
Tom does speak Chinese well, but his reading and writing skills leave much _______.
| A．to improve | B．to be improved | C．improving | D．improved |
To get an education, _______.
| A．working hard is very important | B．working hard is needed |
| C．one must work hard | D．it is needed to work hard |