1) They write a test. (not\have to)
2) She clean her desk. (have to)
3) Ken and Liz learn English words. (have to)
4) Andy help his brother. (not\have to)
5) We do our homework. (not\have to)
6) He write with a pencil? (have to)
7) I feed the hamster. (have to)
8) You take photos? ( have to)