People develop ______ preference for a particular style of learning at ______ early age and these preferences affect learning.
| A．a; an | B．a; 不填 | C．不填; the | D．the; an |
I'll have you ______ English in six months .
| A．speaking | B．speak | C．spoken | D．be able to speak |
I couldn't have got to the meeting on time - _______ an earlier train .
| A．if I had not caught | B．unless I had caught | C．if I did not catch | D．unless I caught |
I'd better not catch ______ that again !
| A．your doing | B．you doing | C．you to do | D．you being doing |
I posted the letter some time _____ the week .
| A．in | B．during | C．throughout | D．within |
Take a taxi , _____ you'll miss your train .
| A．and | B．if | C．otherwise | D．or |