Sleep (13) _______ an important role in teenagers’ health and daily life.

Once the cherry blossoms are in flower, the festival (24) _______.

Pronunciation "ed"

We _______ swimming in the river when we lived in the countryside.

Avoid using phones or (15) _______ devices before bedtime.

Stress

Playing video games too much causes _______ problems for teenagers.

Avoid (16) _______ coffee or sugary drinks in the evening.

At 8 p.m. yesterday, I _______ my homework in my room.

Workers at the construction site wear _______ helmets to protect themselves.

If the weather _______ sunny tomorrow, our class _______ the history museum.

Students who sleep well feel more energetic, have a stronger memory for studying, and can concentrate (14) _______ in class than those who sleep less than 7 hours per night.