1.The elderly man ____in the easy chair,talking to a friend (sit sits)

sits

2.The boys _____ the craftman make a chair (Watch watches)
watch

3.Katherine and Thomas ___ at the amusing story (laugh laughs)
laugh

4.That successful author ___ to write another novel (plan plans)
plans

5.The artist ___ about the color she will use (think thinks)
thinks

6.The leaves ____ color every fall (change changes)
change

7.The meal ___soup or salad (include includes)
includes

8.The children ___ around the fire (huddle huddles)
huddle

9.The taxes ___ up every year
(go goes)
go

10.The mice ___ all the cheese (eat eats)
eats?

Mice = singular or plural??

eat

eat