Most experts agree that human activities such as the clearing of large areas of forests, and farming on a large scale _________ the problem of global warming.
#65324
A
is leading to
B
is resulting in
C
are contributing to
D
are owing to
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Jane’s pale face suggested that she______ill,and her parents suggested that she________a medical examination.
#69784
A
be;should have   
B
was;have
C
should be;had   
D
was;has
They _________ with each other at first sight and got married a year later. Until now they __________ still ________ and live a very happy life.
#71829
A
fell in love; fall; in love
B
were in love; are; in love
C
fell in love; are; in love
D
were in love; fall; in love