—Did your father come back early last night?
—Yes. It was not yet eight o’clock _______ he arrived home.
| A．before | B．when | C．that | D．until |
The old man took __________ the story where he left off.
| A．over | B．up | C．on | D．off |
The director made the demand that she __________ the dangerous place as soon as possible.
| A．left | B．would leave | C．leave | D．was leaving |
He was unable to make such progress, __________________.
| A．as he tried hard | B．as hard he tried | C．so hard did he try | D．hard as he tried |
The letters PLA __________ the People’s Liberation Army.
| A．mean for | B．turn for | C．long for | D．stand for |
She finds her new jobs very __________ but she will never give it up.
| A．interesting | B．regretful | C．satisfying. | D．stressful |