Помогите пожалуйста!!!! Find the signal words for simple present.

1.Which is a signal word for simple present?
а).now б).last Monday в).often
2.Which is a signal word for simple present?
а). sometimes б).at the moment в).yesterday
3.Which is a signal word for simple present?
а).last Friday б).every Friday в).next Friday
4.Which is not a signal word for simple present?
а). never б). already в). usually
5.Which is not a signal word for simple present?
а) Listen! б) first ... then ... в) seldom ​