--- ___________________
--- I’m being served. Thank you anyway.
A. May I have the bill? B. Can I take your order?
C. How would you like your coffee? D. What about eating out?
I didn't realize my mistake ________ my teacher had a facetoface talk with me.
A .until B. after C. since D. when
---There is some doubt _____ the concert will be held as the company intends to redecorate the stadium next week.
---What a pity!
A. where B. that C. if D. how
The number of various educational programs is increasing important roles have been recognized by more and more people.
A．whose B．where C．which D．that
Through so much trouble，he learned ________ everyone needed friendship and ________self confidence is important.
A. that；/ B./；/ C. that；that D./；what
The American economy is still in trouble，________ the Chinese economy is beginning to pick up.
A. when B. however C. while D. therefore
