It was only after she had read the papers _______ Mary realized the homework before her was extremely difficult to complete.
What the boy enjoys _____ to have a room of his own.
_________ he is, he has a wide range of knowledge.
_________ difficult the task may be, we must finish it on time, because we can’t meet such a precious opportunity _______ we have expected.
Difficulties and hardships have ________ the best character of the young geologist.