Scientists think that the continents ____ always where they ___today.
#104180
A
aren't; are
B
aren't; were
C
weren't; are
D
weren't; were
推荐题目
He hoped that he would _____ a more suitable job.
#103084
A
be assigned
B
assign
C
have been assigned
D
have assigned
— Have you finished your work? —Yes. Actually, I _______ it before you came.
#99229
A
have finished
B
had finished
C
finished
D
would finish
— Can I help you, madam?— Yes, I bought this air conditioner here yesterday, but it _____ now. 
#104569
A
didn’t work
B
won’t work
C
can’t work
D
doesn’t work