Over the past decades, sea ice _____ in the Arctic as a result of global warming.
| A．had decreased | B．decreased | C．has been decreasing | D．is decreasing |
I can’t put up with the _____atmosphere here.
| A．silent | B．aimless | C．lifeless | D．deadly |
The government will __________ the country through the difficulties ahead.
| A．direct | B．lead | C．guide | D．draw |
I always persuade Mary to have both feet on the____as she wants to marry a millionaire and accomplish her goals in an easy way.
| A．ground | B．earth | C．location | D．place |
Students are asked to _____ themselves in this boarding school and they are only allowed to go back home once a week.
| A．act | B．behave | C．perform | D．observe |
She had a _____C_in which she saw her boyfriend coming with a bunch of red roses.
| A．view | B．image | C．vision | D．Sight |