The young man spent as much time as he __ over his lessons.
#4555
A
went
B
could go
C
could going
D
could to go
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Whoever _____ a new idea of how to work out the puzzle will be given a prize.
#4660
A
comes up
B
comes up with
C
comes out with
D
comes with
.We will learn how to operate the machine _______.
#4731
A
at a time
B
at one time
C
at the time
D
in time
Marty as well as his parents _________ to the opening ceremony the other day.
#4533
A
has invited
B
have invited
C
was invited
D
were invited