13.Some students often enjoy music to relax themselves classes.( )
| A. | among | B. | over | C. | during | D. | between |
9.______ he is only 12,he often goes to the old people's home to perform plays for the old people as a volunteer.( )
| A. | If | B. | Since | C. | Though | D. | Because |
8.---How long will it be _______ the Stock(股票) Market returns to normal?
---At least one year,I guess.( )
---At least one year,I guess.( )
| A. | before | B. | when | C. | until |
7.-Does your mother have any hobbies?
-No,_______ you call watching TV a hobby.( )
-No,_______ you call watching TV a hobby.( )
| A. | unless | B. | until | C. | if | D. | when |
5.─There's a sign over there.What does it say?
─It says we are not allowed to enter the exhibition ______ we have a ticket.( )
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─It says we are not allowed to enter the exhibition ______ we have a ticket.( )
| A. | if | B. | when | C. | unless | D. | because |