Daniel is one of those students who _______ always willing to help others .
#61678
A
is
B
are
C
was
D
were
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Every minute must _______ full use of _____ our lessons. 
#54716
A
be made; doing
B
make ; do
C
make; done
D
be made ; todo
look at the lights in our classroom, please go and     .
#62640
A
turn them off
B
turn off them
C
turn it off
D
turn off it
I     a computer.
#57331
A
am
B
have
C
help
D
call
Your father is sleeping. You'd better ___________.
#56043
A
not to wake him up
B
not to wake up him
C
not wake up him
D
not wake him up