Mr. Green          his lessons when I went into his office.
#36608
A
prepares
B
prepared
C
is preparing
D
was preparing
推荐题目
I ________the day before yesterday, I’ve _________for 2days.
#39696
A
arrived, come back.
B
reached, returned
C
got, returned back
D
arrived, been back
Sam came to Baihai in 2002. He __________ here for nine years.
#42228
A
lives
B
was living
C
has lived
D
will live