Scientists think they have _____ in their attempt to find the causes of some major dieases.
| A．broken through | B．worked out | C．fallen out | D．got round |
They ______him to drop the plan, but he was determined to carry it through to the end.
| A．urged | B．persuaded | C．encouraged | D．suggested |
Jenny was sad over the loss of the photos she shot in Canada, _________ this was a memory she especially treasured.
| A．if | B．when | C．as | D．where |
I hope you don’t mind me asking, ________where did you buy those shoes?
| A．so | B．and | C．yet | D．but |
The study surveyed 500 families and found the mainproblem people suffered was tiredness, followed by loneliness and anxiety.
| A．domestic | B．public | C．psychological | D．biological |
Although the country has had political independence for over a century,it needs the support of its neighbors.
| A．naturally | B．economically | C．especially | D．luckily |