Hank ____ his capable secretary by leaving most of the work to her and doing little himself.
| A．has advantage of | B．has an advantage of |
| C．takes advantage of | D．takes advantages |
Not until the teenager left his hometown ________ how much he loved it.
| A．did he know | B．he knew |
| C．had he known | D．he had known |
--Yao Yuan,a disabled woman,won the National Championships Cup last week.
--My goodness! She _______a lot of difficulties!
| A．may go through | B．might go through |
| C．must have gone through | D．ought to have gone through |
Don’t take up other people’s personal space, ______ will bring much inconvenience to them.
| A．where | B．which | C．what | D．that |
Everyone queued up before the booking office in silence, having nothing to do but _________.
| A．to wait | B．waiting | C．wait | D．waited |
I tried all I could do ______ the topic at the meeting, but failed.
| A．avoid mentioning | B．to avoid mentioning |
| C．avoiding to mention | D．avoiding mentioning |