—Was his father very strict with him when he was at school?
—Yes, he had never praised him _______ he became one of the top students in his grade.",

A.after

B.unless

C.until

D.when

Owen wouldn’t eat anything ____________ he cooked it himself",

A.until

B.since

C.unless

D.while


1. — Have you known each other for long?
— Not very long, ____ we started to work in the company.",

A.after

B.before

C.when

D. since

They made no effort to hide their amusement ________ I produced a packet of sweets from my pocket.",

A.however

B.whatever

C.whichever

D.whenever

Generally speaking, the publishers will send you a specimen copy of their new books when ________.",

A.requested

B.requesting

C.having requested

D.to be requested

When you’re lea ing to drive, _______ a good teacher makes a big difference.",

A.have

B.having

C.and have

D.and having

We had to be patient because it___some time ___we got the full results.",

A.has been ; since

B.had been ; until

C.was; after

D.would be ; before

It was ________ Benazir Bhutto, former Pakistan prime minister, was leaving the rally(集会) that the suicide bomb happened, ________ the world felt sorry.",

A.when; for which

B.as; which

C.since; for which

D.after; which

He transplanted the rare flowers to the botany garden_______it was the best time for them.",

A.where

B.when

C.until

D.that

She was such a proud person that she would die ____ she would admit she was wrong.",

A.rather than

B.until

C.after

D.before