Our English teacher is very strict _______ us and he is strict _______ his teaching.
Paul made a nice cage _______the little sick bird till it could fly.
---Could I have a look at your new bicycle?---Sorry. I _______ it to Alice. She _______ to borrow it this morning.
Can you tell us whd where to get help when we have problems?
His wife _____ to Singapore a few times, and now she ____there for a meeting.
---Look at the boy running on the playground. Is it David?---It ________ be him. I saw him go to the teachers’ office just now.