Раскройте скобки, поставив глаголы в Present, Past or Future Continuous. 1. What you (to do) now? 2. It (to snow) the whole day yesterday. 3. Whom you (to wait) here for? 4. These students (to obtain) pure hydrogen. 5.We (to write) our test paper from ten till half past eleven yesterday. 6. My friend (to heat) a solution on the burner now. 7. The students (to mix) different substances next week. 8. My brother (to cross) the street, where I saw him. 9. If you come to see me early in the morning, I (to sleep). 10. We not (to cool) a mixture next week.

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