I travel to the Binhai New Area by light railway every day, _____ do many businessmen who live in downtown Tianjin.
| A．as | B．which | C．when | D．though |
What impresses me most is ______ he appears in front of others, he wears a sincere and charming smile．
A．which B．that C．where D that whenever
____ difficulties we meet, we can work them out.
| A．Whatever | B．However | C．Wherever | D．Whenever |
The meeting was expected to start at 9 o'clock but the manager didn't turn up ______ twenty minutes later.
| A．before | B．until | C．after | D．since |
Although he was in poor health, Robert succeeded ______ other more famous engineers failed.
| A．which | B．that | C．what | D．where |
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 |