The two girls are so alike that strangers find_____ difficult to tell one from the other.
____he wants to say is____ great an effort he has made to help her out.
She was so proud a person that she would die___ she would admit she was wrong.
Just like a voyage at sea, our life journey, _____days are limited, is full of difficulties.
---Bob isn’t feeling very well. He has caught a cold. ---Everybody seems to have____ because of the sudden change of the weather.
---I’ve told her many times, and she still forgot about it! ---I understand. It’s true that she___ be very forgetful sometimes.