1 . Perhaps it will be a long time from abroad .
A.when Bill comes back B. before Bill comes back C.when Bill will come back D.that Bill comes back
2. Hard as he worked from day till night, he couldn't make enough money to support his family.
A.and B.but C.therefore D.不填
3. He came to the party, he hadn't been invited.
A . in case B . in spite of C . even D.although
4. We shall not discuss the question at the meeting we have enough time.
A.if B.unless C.while D.when
5. great was the destruction that the South took decades to recover.
A. Very B.Too C.Such D.So