What a pity. Considering his ability and experience, hebetter.
| A. | need have done | B. | must have done |
| C. | can have done | D. | might have done |
Colour shapes our view of ________ world and it may have ________ fargreater influence on our lives than many of us realize.
| A.a; a | B.the;不填 | C.the; the | D.the; a |
You must do your homework now; you ________ computer games all the evening.
| A.have been playing | B.are playing |
C.play | D.played |
Keep your minds ________ to different ideas, or you will not be successful.
| A.opening | B.to open | C.open | D.opened |
— ________ your brother said to you?
— He encouraged me to talk to foreigners more often.
| A.What it was that | B.What was it that |
| C.How it was that | D.How was it that |
________ you are responsible for the information, you must be very careful.
| A.Unless | B.While | C.Since | D.Though |