For some time the expert __________ people of the health risks caused by passive smoking. He says he won’t stop until all the smokers around him decide to quit smoking.
#102620
A
is warned
B
is warning
C
has been warning
D
has been warned
推荐题目
The number of deaths from heart disease will be reduced greatly if people_______ to eat more fruit and vegetables.
#101810
A
persuade
B
will persuade
C
be persuaded
D
are persuaded
（2010·重庆模拟）—Alice, you look puzzled．Haven’t you understood it? —Yes．I _____of another problem just now．
#102848
A
had thought
B
have thought
C
thought
D
was thinking
—Are you still busy? —Yes, I __________my work, and it won’t take long
#101141
A
just finish
B
am just finishing
C
have just finished
D
am just going to finish
A group of children ______ hide and seek in the garden.
#103823
A
is playing
B
are playing
C
has been playing
D
was playing