---How long has your brother been working in this factory?
---_____he dropped from school in 2010.
| A．When | B．Until | C．Since | D．Before |
It ________ we had stayed together for a couple of weeks ________ I found we had a lot in common.
| A．was until; when | B．was until; that | C．was not until; when | D．was not until; that |
—Her concert was ________ big success last night.
—I think it surely makes ________ difference for a new talent.
| A．/; / | B．a; a | C．a; the | D．a; / |
Success in life doesn’t happen . It’s the result of devoting your time and energy to what you’ve set out to do.
| A．by force | B．by design | C．by accident | D．by choice |
Although the living standards of Chinese people have greatly improved, most poor families in China spend 50% of their income on food.
| A．gradually | B．approximately | C．harmfully | D．curiously |
Experts said it was that Malaysia Airlines Flight 370(马航370) had changed course and turned back toward Kuala Lumpur(吉隆坡).
| A．obvious | B．extinct | C．successful | D．energetic |