They tried several times to the problem, and in the end they succeeded.
#61763
A
give up
B
work out
C
look through
D
think of
推荐题目
— The old man all his money to a charity.— He is really great!
#52053
A
took away
B
put away
C
went away
D
gave away
— When _________ the car _________ ?— In 1885.
#56782
A
did;invent
B
was;invented
C
does;invent
D
is;invented