It was the third time that the boy _________ late. So his teacher got very angry.
#92822
A
have been
B
was
C
had been
D
was being
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After the new technique was introduced， the factory produced _______ tractors in 1988 as the year before.
#92377
A
as twice many
B
as many as
C
as twice as many
D
twice as many
Most of us still wonder ___________ it is ________ makes those honest peasant workers, without being paid at all, resign themselves to the bosses.
#94113
A
what; that
B
/; what
C
that; what
D
/; that
He spent at least as much time reading as you _______on line yesterday.
#92772
A
had to chat
B
do chatting
C
had chatted
D
did chatting
________ the 2020 Olympic Games will be held in Beijing is not known yet.
#95073
A
Whenever
B
If
C
Whether
D
That