He walked __________ the bridge, pushed his way __________ the crowd of people and soon came to a hut.
| A．across; across | B．over; through |
| C．over; into | D．across; through |
________ Chai Jing said in her video about the smog has caused public concern.
| A．That | B．Which | C．How | D．What |
Mary has her weakness, ___________ that doesn’t mean she is not qualified for her job.
| A．and | B．yet | C．so | D．or |
Do you know the police ______ searching for a thief in the woods now ?
| A．is | B．are | C．was | D．were |
When he was young, his parents died and he had to _____ himself.
| A．accept | B．support | C．carry | D．weigh |
Whether life will continue on the earth will depend on _______ this problem can be solved.
| A．that | B．which | C．whether | D．If |