INSTRUCTIONS: use have to according to the sentences. 1. Peter and Mary ___write_____________ (write) a letter to their mother. They use messenger. 2. Mary ____clean______________ (not/clean) her desk. 3. Ken and Liz ____________learn________ (learn) English words. 4. Andy ____help________________ (help) his brother. 5. We ____do__________________ (not/do) our homework.
