She did what she could _______ us. Though 3,000 dollars is a lot of money for her.

Having checked the doors were closed, and ________all the lights were off, the boy opened the door to his bedroom.[ ]

Though his grandfather was 60 years old, he____a trip around the world. [ ]

Thanks for ____me to the party.

Kate ________ take NO.1 bus to the library.