Several weeks had gone by _______ we realized the painting was missing.
| A．as | B．since |
C．before | D．when |
The convenient media give people the chance to have the information we look forward_____to them quickly and cheaply.
| A．to deliver | B．deliver | C．to delivering | D．to delivered |
The first week of university is an exciting time _______ freshmen familiarize themselves with their college and make new friends.
| A．that | B．when | C．what | D．on which |
Since time is limited, let’s cut _____ the unimportant details.
| A．off | B．away | C．up | D．out |
Since Mr. Evans took over the firm last month, he _____ to the busy schedule.
| A．adapted | B．has adapted | C．had adapted | D．adapts |
There is gas _______ somewhere; can you smell it?
| A．suffering | B．retiring | C．escaping | D．dropping |