Раскройте скобки, употребив глагол в правильной форме. 1. This river (freeze) in winter? 2. Their lessons usually (begin) at 8.30. 3. Why you (not eat) vegetables? They (be) very useful. 4. She (not drink) apple juice. She (be) allergic to it. 5. You (not know) how to trans- late this word? 6. What this word (mean)? 7. How much these apples (cost)? 8. I (not think) he (understand) how dangerous it (be). 9. Мy mother never (buy) food in this shop. She (say) it (be) not fresh. 10. Mike always (choose) presents for his children himself.