-Be careful! You might fall into the water. -Thank you. I____.I______ so close to the pool.
#41678
A
didn't know; am standing
B
don't know; am standing
C
didn’t know; was standing
D
didn't know;Would stand
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By the end of last month, I _____ all the CDs of Justin Bieber.
#42234
A
collect
B
collected
C
have collected
D
had collected
Where is my pen ? Millie _____ it here but I can’t find it .
#39430
A
puts
B
put
C
is putting
D
was putting
 —How long _______home?—For about three months.
#41673
A
have you been away from
B
did you leave
C
have you left
D
are you away from