The little boy is very brave. He ____ through the jungle with us last week.
#39929
A
trek
B
treked
C
trekes
D
trekked
推荐题目
Do you know when the basketball_________?
#37140
A
is invented
B
was invented
C
has invented
D
had invented
– Look at these factories. I hate them. They____ many rivers here. --Yes. Something ______ to stop the pollution.
#39701
A
polluted, must do
B
had polluted , must be doing
C
have polluted , must be done
D
were polluting, must be done