We may find that learning a foreign language does not have to be________learning our mother tongue,but can in fact be twice ________.
His room needs _______,so he must have it ________.
_______ difficulty we meet with, we must finish it on time, because the opportunity is_______ valuable.
Is this hotel ________you said we were to stay in your letter?
After five hours’ drive, they reached____they thought was the place they had been dreaming.
Thinking________you know _________in fact you don’t is a terrible mistake.