—Why do you look so puzzled?
—Oh，I ________ over a most difficult maths problem.
| A．thought | B．have thought |
| C．am thinking | D．think |
---Mind if I play a record now?
---______________.
| A．Sorry, I don’t. | B．No, just do it, please. | C．Yes, go ahead. | D．Of course I do. |
I wonder what it is that counts when it _____ learning a foreign language.
| A．comes to | B．focuses on | C．speaks of | D．deals with |
My son __________ his clock when I went to get a cup I __________ in his study.
| A．was winding up; had left | B．would up; had forgotten |
| C．had wounded; left | D．was winding up; forgot |
But for the fact that China _________ also affected by the global economic crisis, we _________ fewer unemployed workers now.
| A．is; would have | B．were; would have |
| C．was; would have had | D．were; would have had |
She tried her best to _____ the life there, but failed to make any _____.
| A．adjust to; sense | B．adapt to; trouble | C．adapt to; effort | D．adjust to; difference |