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He walked ________ he were drunk.
A、even if
B、as
C、as if
D、seem
Many companies have a substantial number of computers_______.
A、large
B、important
C、great
D、material
They devote themselves to helping the poor_______.
A、put
B、spend
C、dedicate
D、submit
---Could I have a refund on this? ---_______.
A、You are good
B、Have a nice day
C、I’m afraid you can’t
D、You can go
