How pleased the boy was _____ what his parents said！
| A．hearing | B．heard | C．hear | D．to hear |
Agriculture _____ about 14 percent of global greenhouse gas emissions, and transporting the food around adds to the environmental cost.
| A．cares for | B．applies for |
| C．accounts for | D．answers for |
Living in ever increasingly fast-paced world, we must take____ advantage of every opportunity to develop．
| A．an; the | B．an; an | C．the; an | D．the;／ |
--- Excuse me, is the shop open around the clock?
--- ________. Only from 8:00 a.m. to 4:00 p.m.
| A．I’m not sure | B．Well, it depends |
| C．I’m afraid not | D．That’s right |
It's an either-or situation - we can buy a new car this year or we can go on holiday but we can’t do ______.
| A．Others | B．Either | C．Another | D．both |
I'll go to the library as soon as I finish what I .
| A．was doing | B．am doing |
| C．have done | D．had been doing |