Fill in helping verb in each sentence.
- Pete ____ riding a bike.
- Alan ______ write a letter tomorrow.
- You _______ absent.
- Our class _______ have a field trip next week.
- She _______ do her homework.
- You _______ have finished that book.
- I ____________ ready to leave yet.
- That show ____________ ____________ running since last month.
- The boys ____________ leave in 5 minutes.
- The birds ____________ left that area.
- A welcome message ____________ been sent to you via email.
- I ____________ see some turtles in the pond.
- The school bus ____________ ____________ arrived there by now.