Some insects________the colour of their surroundings to protect themselves.
| A．take in | B．take off |
| C．take on | D．take out |
Some experts hold the view that knowledge is now everything for people . They think people’s moral character is ______as _____they have learned .
| A．as much of importance; what |
| B．as much of importance; which |
| C．as much important; that |
| D．important as much ; which |
The telegram has faded out in our life now, and gone with____ are telegraph operators.
| A．what | B．which | C．it | D．them |
--- I really enjoyed talking with you ---but I’m afraid I must be off now!
---_____.
| A．My pleasure | B．Nice to see you |
| C．Sorry to trouble you | D．So long |
Things will only _____if we all keep to the plan.
| A．work out | B．pick out | C．go through | D．come up |
—Peter, have you _____your decayed tooth?
—Yeah, but it’s terrible . I had _____most unpleasant time at the dentist’s.
| A．pulled out; a | B．cut out; the | C．pulled out; the | D．break out; a |