In the past few years，My Heart Will Go On was a popular song among young people, _______were often heard singing it at parties.
| A．who | B．which |
| C．they | D．that |
—You were mistaken _____ Jane，she really wanted to help you.
—I admit that I mistook her offer _____a threat. Anyhow，I don’t like the way she acts.
| A．about; to | B．for; as | C．about; for | D．in; for |
Although she ______for a moment about the job，she finally accepted it considering the benefits of it.
| A．hesitated | B．paused | C．stopped | D．wondered |
_____several times，but unfortunately，the boy still couldn’t smooth away the problem on his own.
| A．Having been explained | B．The problem having been explained |
| C．The problem had been explained | D．Although the problem had been explained |
_____herself wondering whether she had made a mistake, she felt embarrassed and at a loss.
| A．Catching | B．Caught | C．Being caught | D．Having been caught |
____ with a camera a compass and several maps , the scientists set out to explore the ancient forest.
| A．Equipping | B．Having equipped | C．Equipped | D．To be equipped |