Bikes ______ in the 1880s and they ______ traveling around.
#45063
A
were invented; were used as
B
were invented; are used for
C
was invented; was used for
D
invented; are used to
推荐题目
—What a nice classroom! —It _____ every day.
#44598
A
is cleaning
B
has cleaned
C
must clean
D
is cleaned
—How beautiful the song You and Me _________! Who _______ it ________ by?—Liu Huan and Sarah Bringtrnan.
#44818
A
is sounded , is , sung
B
sounds , does , sing
C
is sounded , does, sing
D
sounds ,is , sung