—Recent pressure at work may ______ his behavior.
| A．account for | B．make for | C．change for | D．stand for |
Stephen Hawking has expressed his opinion ___ humans might one day be able to make spaceships capable of such speeds that time on board would slow down．
| A．that | B．whom | C．which | D．what |
A truly creative person is able to _____ with fresh ideas from a story told time after time．
| A．come on | B．come along | C．come up | D．come out |
Not until the next morning _____ how serious the situation was．
| A．did she realise | B．had she realised |
| C．she realised | D．she had realized |
The education reform plan took one year and nine months to draw up, _____ public opinions were called for,
| A．to which | B．during which |
| C．from which | D．from whom |
If Tom _____ my advice, he wouldn't have lost his job．
| A．should follow | B．had followed |
| C．followed | D．would follow |