Sure! Here are the best answers to underline in the sentences:

1. Mai **wears** her uniform on Mondays and Saturdays (wear/wears/is wearing).
2. Look! The girls **are skipping** in the schoolyard. (skip/skips/are skipping).
3. The dog is **behind** the pillow. (front of/next/behind).
4. There **is** a table and four chairs in the middle of the room (is/are/has).
5. Mina is very **creative**. She likes to draw pictures. She always has lots of new ideas (talkative/kind/creative).
6. Go straight. Take the second **turn** on the left (turn/turning/going).
7. The street is very **narrow** with a lot of traffic so we can't move fast. (boring/convenient/narrow).
8. Things in this shop are **more expensive** than things in that shop (expensive/more expensive/expensiver).