Would you _____ a game of table tennis, Cathy?—I’d love to, but I still have piles of homework to do.

He is sitting __________ the classroom.

positiongivenbytheteacher___,AlicewenttowatchTV

I’ve been so bored for a long time. I hope to have to do.

studyingchemistry for years, I can only say I have____general knowledge of thissubject.