---Did you find the small village yesterday? ---Yes, without any difficulty, for it has __________changed over years.
—You look worried. What’s your _______? —I have trouble learning English.
—Would your younger brother go for a picnic this Sunday? —If I don’t go, _______.
I won’t leave my office until my work _______.
__ your help, we can finish the task in time.
—Look at the boy running on the ground. Is it Davis? —It ______ be him. I saw him go to the teacher’s office just now.