I always cannot help people in trouble a hand. But I am so busy today that I can’t help the work for you.
Life is like _________ ocean; only ________ strong-willed can reach the other shore.
The two girls are so alike that strangers find________difficult to tell one from the other.
The manager had fallen asleep where he_______,without undressing.
Give yourself 10% of________is left for your work and let me have the rest.
The school has developed an online system________ students can choose their own teachers.