My grandpa sowed the flower seeds in the garden ______it was the best time for them to grow．
| A．where | B．when | C．that | D．until |
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 |
Sarah looked atfinished painting withsatisfaction.
| A．不填；a | B．a; the | C．the; 不填 | D．the; a |