With the guide leading the way we were able to travel ___ the forest not ___ air but __foot.
— Would you do me a favor and carry these books? — ____.
— Thank you ever so much for the present you brought me. — ____.
— Sorry, I couldn’t come to the party. I was sick that day. — ____.
— Have you got time on Monday? — ____
Wasn’t it Dr Wang who spoke to you just now? — ____.