Schools across China are expected to hire 50,000 college graduates this year as short-term teachers, almost three times the number hired last year, ____ reduce unemployment pressures.
| A．helping | B．to have helped |
| C．to help | D．having helped |
We can hardly believe such a young boy ______ travel around the world all by himself.
| A．may | B．need | C．should | D．must |
My friend Jack was the first person I knew ______an iPhone 5S.
| A．using | B．to use | C．used | D．having used |
They hope to turn our society into one ______ those in need can get help.
| A．where | B．which | C．when | D．who |
My opinion is ________the same as yours.
| A．and so on | B．on the other hand | C．at risk | D．on the whole |
My partner wants to keep the company small _____ I’d like to expand it.
| A．and | B．or | C．however | D．while |