---I haven't got the reference book yet, but I'll have a test on the subject next month.
---Don't worry. Youhave it by Friday.
A. | could | B. | shall | C. | must | D. | may |
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---I haven't got the reference book yet, but I'll have a test on the subject next month.
---Don't worry. Youhave it by Friday.
A. | could | B. | shall | C. | must | D. | may |