Sunset at Mount Huangshan is a beautiful scene, _______ I’ll never forget.
| A．one | B．it | C．what | D．that |
As a global financial center, Hong Kong serves as the ______ role in the course of Renminbi internationalization.
| A．unique | B．only |
| C．single | D．typical |
There is a ______ going on in America public schools over the best way to teach English to foreign students.
| A．decision | B．debate |
| C．quarrel | D．conclusion |
—Can I go out to play, Mom?
—You can ______ you stay in the garden.
| A．as if | B．as long as |
| C．now that | D．in order that |
All people, ______ they are old or young, rich or poor, have been trying their best to help those in need since the disaster.
| A．even if | B．whether |
| C．no matter | D．however |
______ he works hard，I don't mind when he finishes the experiment.
| A．As long as | B．As well as |
| C．So far as | D．As soon as |