The light bulb ______ by Edison in the middle of the 1780s.
#44649
A
is invented
B
was invented
C
invented
D
invent
推荐题目
May we leave the classroom now? No, you _____. You_____ to leave until the bell rings.
#44732
A
mustn’t, are allowed
B
don’t have to , are supposed
C
needn’t , aren’t allowed
D
can’t , aren’t supposed
When I heard my baby girl say her first word, my heart was with joy.
#45070
A
filled
B
marked
C
prepared
D
shown
---Why is the classroom so dirty? --- Sorry, sir. It ______ yesterday. We forgot to do it.
#44831
A
doesn’t clean
B
didn’t clean
C
isn’t cleaned
D
wasn’t cleaned
--- What should we do on No-smoking Day? --- People aren’t _________ on that day.
#44591
A
allowed smoking
B
allowed to smoke
C
allowing to smoke
D
allow smoking
What ______you do if you _______ in Grade 7 now?
#44518
A
could, are
B
would, are
C
could, was
D
would, were