---- Who knocked at the door? ---- I’ve no idea. I just pretended nobody was at home, so I didn’t ask who was___.
“I am thinking of tomorrow’s maths test. I’m afraid I can’t pass it.” “_____. I’m sure you’ll make it.
._____ you don’t like him is none of my business.
______of danger in the street at night, she had to go home, with a friend_____ her.
Earth is a rocky planet_____ liquid water, which is necessary for life, can exist.
.Having retired from business, he now_____ himself with the welfare of disabled and lives a meaningful life.