Either you or one of your students _______ to attend the meeting that is due tomorrow. 
#85671
A
are
B
is
C
have
D
be
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All possible means ______. However, nothing can _____ his wife dying of lung cancer.
#85909
A
has tried; stop
B
have tried; keep
C
have been tried; prevent
D
has been tried; stop
 Every boy and every girl in our school _____ to join one or two clubs according to their hobbies.
#85738
A
are encouraged
B
encourage
C
is encouraged
D
is encouraging
―It’s snowing outside. Why not ____________ it.―Good idea! 
#43854
A
to stop to watch
B
to stop watching
C
stop watching
D
stop to watch