Ответ:
1Children ( walk )their dogs.
Present Simple
+Children USUALLY walk their dogs.
-Children don't walk their dogs.
? Do children walk their dogs?
2 Lake Baikal (to be) Famous
.
+Lake Baikal is famous
.
-Lake Baikal isn't famous
.
?Is lake Baikal famous
?
Present Cont.
1 +Children are walking their dogs now.
-Children aren't walking their dogs now.
? Are children walking their dogs now?
2 ) Lake Baikal (to be) Famous-не употребляется
Past Simple
1+Children walked their dogs yesterday.
-+Children didn't walk their dogs yesterday.
?Did children walk their dogs yesterday?
2+ Lake Baikal was famous many years ago.
-Lake Baikal wasn't famous many years ago.
?Was Lake Baikal famous many years ago?
Past Cont
1+Children were walking their dogs at 3 o'clock yesterday.
-Children weren't walking their dogs at 3 o'clock yesterday
? Were children walking their dogs at 3 o'clock yesterday?
2.) Lake Baikal (to be) Famous-не употребляется
Future Simple
1+Children will walk their dogs tomorrow.
-Children will not walk their dogs tomorrow.
?Will children walk their dogs tomorrow?+
2+ Lake Baikal will be famous for many years in future.
-Lake Baikal will not be famous for many years in future.
?Will Lake Baikal be famous for many years in future?
Объяснение: