Переделайте предложения так, чтобы смысл был такой же:
We've agreed to have a lesson on Tuesday at 5 o'clock in the evening. -
We ............. a lesson on Tuesday at 5 o'clock in the evening.
I promise to do my homework on time -
I ........... my homework on time.
Why don't we visit our grandmother this weekend? -
................... we visit our grandmother this weekend?