—I’d like some more cheese.—Sorry, there’s _____ left.
When it ________ air pollution, Beijing faces the three “C”s, cars, coals and construction, which lead to Beijing’s thick air pollution.
It remains ______ whether Jim will be fit enough to play in the finals.
English is ________ hard for me and Physics is ________ harder.
Hi, Doctor Wang, my chest _______ when I make a deep breath.
Her shoes ________ her dress; they look very well together.