Mrs. Hanson, a housewife bent on getting ________ higher education, has been going to college, a few courses at ________ time, for 7 years.
| A．a; a | B．不填; the | C．the；a | D．不填；不填 |
We must soon ______a new teacher to the class.
| A．adapt | B．appoint |
| C．exchange | D．abuse |
The tourists, had enjoyed themselves so much in the botanic garden, were worn out。
| A．all of what | B．all of which |
| C．all of them | D．all of whom |
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 |