Which dress do you like best, Madam— Sorry. I can’t decide ___________ now.

What do you think of pollution of the big factory— It’s a serious problem. We should _____ all the people to do something for it.

That little boy doesn’t feel like_____ out today, _______ her sister would like to go shopping.

eople move to another country, they often try_________ the custom of their native land.

He hesitated(犹豫) for a moment before kicking the ball, otherwise he _____the goal.