________ him before, I didn't recognize him.
A.Having never seen |
B.Never seeing |
C.Not seeing |
D.Having not seen |
As a teacher, I seldom give my students so difficult a problem ________ they can not work out.
A.that |
B.if |
C.in order that |
D.as |
It's difficult to _______a conversation with someone who only says “yes” and “no”.
A.put up |
B.pick up |
C.keep up |
D.live up |
26.— What’s up. Lucy?
— ________.
A.I’m terribly sorry. |
B.I’ve met an old friend of mine. |
C.It’s over there. |
D.It’s very nice of you |
Use your head. nothing taught by others can have the same effect on you as ________learned by yourself.
A.those |
B.what |
C.that |
D.the one |
Shanghai celebrated____one year countdown (倒计时) to the opening of___2010 World Expo on May 1, 2009.
A.the ;/ |
B.a; the |
C.the; the |
D.an; the |