-- ___________ did the important meeting ___________?
-- For about two hours.
| A．When; begin | B．How long; begin |
| C．When; last | D．How long; last |
– Why do you like the boy so much, Sophia?
– Because he is trying __________ best to catch up with others this term.
| A．he | B．him |
| C．his | D．her |
Paper is made ____________ wood. So saving paper is saving forests.
| A．of | B．from |
| C．into | D．up |
The light bulb is really __________ useful invention.
| A．a | B．an |
| C．the | D．/ |
--- I’ll fly to Qingdao for my holiday this weekend.
--- Wonderful! ____________
| A．Why not? | B．I hope so. |
| C．With pleasure. | D．Have a good time! |
--- What do you think of the book written by Mo Yan?
--- Oh, excellent. It is worth ___________ a second time.
| A．to read | B．to be read |
| C．reading | D．being read |