The wild population of pandas is in danger of ______.
A.dying down B.dying out C.dying away D.dying for
______ the news that he had eaten 10 hamburgers in one meal, a(n) ______ expression swiftly appeared on her face.
A.After she heard; astonished
B.Hearing; delightful
C.After she heard; astonishing
D.Hearing; delighted
The crazy fans ______ patiently for two hours, and they would wait till the movie star arrived.
A.were waiting
B.had been waiting
C.has waited
D.would waited
He felt rather ______ after ______ the important match.
A.depressing; losing
B.depressed; lost
C.depressed; losing
D.depressing; having lost
Exercise is the key ______ your health．
A.to improve B.to improving C.in improving D.of improving
Sometimes it is hard to tell how a quarrel ______.
A.comes out
B.comes across
C.comes about
D.comes up with
