单项选择题Try and ______ your tent on level ground.
单项选择题If you are going out for walk, I ll come along and keep you ______.
单项选择题He thinks about nothing but playing video games. I think he s totally ______ to it.
单项选择题The young man has ______ some ingenious schemes to make handsome profits for the company.
单项选择题Professor Smith and Professor Michael ______ in giving us lectures.
单项选择题I ______ my arm when I played basketball yesterday afternoon.