No one knows how the huge rocks   and ___ without our modern machines eight hundred years ago.
#45042
A
are cut; moved
B
were cut; move
C
are cut; moving
D
were cut; moved
推荐题目
 — Alice, you ______ on the phone.— I’m coming. Thanks.
#44380
A
want
B
wanted
C
are wanting
D
are wanted
Put away your school things.Your stationery must       carefully.
#44775
A
be taken good care
B
be taken good care of
C
take good care
D
take good care of
---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
He was often seen _________ with charity work last year.
#44620
A
to help
B
helped
C
helping
D
help