It is so cold in Antarctic that the penguins have to stand _______to each other to keep warm.

I wonder how to _____ to him when I get a present from my foreign friend Jack. — Of course say “Thank you”. [ ]

Compared to country life. city life is comfortable but it________be noisy. [ ]

These days I feel exhausted and lack strength—That’s _____too much drinking and poor diet lead

Gone are the days when Chinese people were______. China is more powerful than ever.