1. who ... that bridge a)did build. b)does build. c)built
вс глагол не требуется в вопросе к подлежащему.
2.It ... often snow here a)-. b) isn't. c)doesn't
3л. ед. ч. в глагол в отрицательном предложении snow - идет снег - это глагол
3.It ... snowing now a)not.b)doesn't.c)isn't
время Презент Континиус (потому что NOW - сейчас) отрицательное предложение
4.They had breakfast ... at 8 o'clock a)did they. b)haden't they c) didn't they
предложение положительное время - в хвостике разделительного вопроса ( не так ли?) - должно быть отрицание - отрицание в времени с вс глагола did
5.It's the biggest tomato she ... a)has ever groun b) grow c) grows
Время презент перфект - это самый большой помидор, который она когда либо выращивала - т.е. показывает действие, начавшееся в и уже завершившегося к моменту речи.
Упражнение№ 1. Раскройте скобки. 1. James is in his room, he is playing there since the morning. 2. For 3 hours now we have been chatting about it and we haven’t come to any decision yet. 3. Jane, do you know where my hat is? I have been looking for it for half an hour and I can’t find it. 4. Your cousinr is dancing with that red-haired girl since she came into the room. 5. He has been trying to solve this problem for several months now but he hasn’t found a solution yet. 6. He has been teaching at school for twenty years. 7. Mr. Smith is working in his room since early morning. 8. The children have been sleeping for 5 hours.