.–What made her so sad ?--- ___ she failed in the exam.
— How are the team playing ? — They are playing well, but one of them _____ hurt.
This is Ted’s photo. We miss him a lot. He ______ trying to save a child in the earthquake.
John and I _____ friends for eight years. We first got to know each other at a Christmas party. But we _____ each other a couple of times before that.
Visitors ______ not to touch the exhibits.
Selecting a mobile phone for personal use is no easy task because technology ____ so rapidly.