1 . Lack of exercise and poor diet can cause________(anxious). （所给词的适当形式填空）

2 . Before the game, I could hardly fall asleep because of _____________ (anxious). (所给词的适当形式填空)

3 . People who is experiencing _________ (anxious) may have their arms ________ (cross) in front of their chests.（所给词的适当形式填空）