It is believed that forest bathing ______ strengthen the immune system.
#87444
A
should
B
must
C
need
D
can
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But for the fact that China _____also affected by the global economic crisis,we ____ fewer unemployed workers now.
#86852
A
were;would have
B
is;would have
C
was;would have had
D
were;would have had
Mr. Smith insisted that his book _______within three days.
#86766
A
returned
B
would be returned
C
should return
D
be returned