Раскройте скобки, употребляя глаголы в требующейся форме, так чтобы получить Present Perfect.

My cousin is looking for a job, but he (not to find) a job yet.
Did you only have a piece of cake? You (not to eat) much.
Your car (to make) strange noises. I think it’s broken
The boy (to do) his homework and is taking a karate lesson now.
Jay never (to travel) overseas.