Is your father or mother a teachers— . My father is a doctor and my mother is an office worker.

On hearing the news that her husband was killed by Pakistan separatists，the wife ______.[ ]

I’m not sure if I’m going to Tim’s party; I may go to the concert .

ildren were playing games on theplayground, ________ school uniforms

The professor could tell by the _________look in Mars’s eyes that she didn’t understand a single word of his lecture.