______ is _____ the students to find out the meaning and the usage of new words.
| A．What a dictionary does; help | B．What dictionary does; to help |
| C．How a dictionary does; help | D．All that a dictionary does; helps |
It was five hours _____ the French climber reached the top of the world’s tallest building.
| A．since | B．that | C．before | D．when |
He must have been annoyed by something yesterday, _____?
| A．wasn’t he | B．hasn’t he | C．needn’t he | D．mustn’t he |
Children _____ to difficult situations are better at handling those _____ tasks.
| A．exposing; challenging; | B．exposed; challenged |
| C．exposed; challenging | D．exposing; challenged |
---Are you happy with this lab?
---Not a little. We can’t have _______.
| A．a worse one | B．a nicer one | C．such a worse one | D．such a nicer one |
What kind of things do people often buy during _____ Christmas and _____ Spring Festival?
| A．/ ; the | B．the; / | C．the; the | D．/; / |