My father stayed in Japan only a few months，_______ he went through a series of hardship.
| A．during which time | B．in time of which | C．where | D．whenever |
The computer was one of the greatest______ in the 20th century.
| A．inventions | B．discoveries | C．findings | D．explorations |
He_____ some German while he was away on a business trip in Berlin.
| A．picked out | B．picked up | C．gave up | D．gave out |
The finance minister has not been so _____ since he raised taxes to such a high level.
| A．popular | B．well-known | C．favorable | D．preferable |
Many moving stories of that time remain______ in people’s heart to this day.
| A．deeply | B．strongly | C．strong | D．deep |
My cousin worked all winter vocation, saving money to______ his hobby of collecting stamps.
| A．search | B．hunt | C．seek | D．pursue |