Environmentalists urged that more effective measures ___________by the government to reduce the pollution.
#87043
A
were taken
B
would adopt
C
be adopted
D
should take
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They enjoyed fresh watermelon last fall because they______ watermelon seeds in the spring. 
#87818
A
were planting
B
would plant
C
have planted
D
had planted
I’d rather you ________ there next week.  
#86429
A
went
B
go
C
should go
D
had gone
Bob said he was going to join our club but he didn’t. What a shame! He ______ his mind.
#87666
A
can’t have changed
B
mustn’t have changed
C
wouldn’t have changed
D
shouldn’t have changed