Once infected with HIV, the body is unable to _____ itself against diseases. [ ]

“When did he leave the classroom?” “He left _______ you turned back to write on the blackboard.”

We students got lost in the forest anddecided to remain ____we were and waited for the guide

Do you know _______ girl over there— Yes, she is my best friend.

0ur students had a lot of fun on _ day of their New Year’s Concert.