Read these sentences and write the correct full verb forms (the

Read these sentences and write the correct full verb forms (the present perfect or the present perfect continuous).

Example 0. The children _______ (watch) videos for two hours.

Answer 0. have been watching


1. Jack (learn) English grammar for hours, but he still doesn't remember anything.

2. Steve (be) a student for 2 years.

3. John (win) the championship two times.