At that time, the calculator was a great ______ / ɪnˈvenʃn /.
#38951
A
invent
B
invitation
C
invention
D
inventor
推荐题目
The accident happened ______ 7p.m. ______ 9p.m.
#43103
A
from; to
B
both; and
C
between; and
D
either; or
He decided to study hard__________ catch up with others.
#42224
A
as a result
B
so that
C
in order that
D
in order to