--Are you sure ____ you have seen this man?

--Yes, I’m quite sure ___that.

-Hurry up!

-________．We've got plenty of time．

-Have you finished reading ________ interesting story?

-Yes．It is worth reading ________ second time．

--- ______ would you like to have?

--- Nothing else. Thanks

---What do you want________ those old boxes?

---To put things inwhen I move to the new flat.

—Time       . It’s likely that we will miss the bus.

—Don’t worry. There are still 10 minutes left.

--     you called yesterday evening? 

--My sister. Why?

--It is really fun to hike and I often go hiking in the forest.

--But hiking alone in the forest ______ be very dangerous.

— You’re at ______ liberty to say whatever you like.  

— I think you’re taking ______ risk by investing everything in one company.

---We didn’t find Smith attending the lecture．

---No one ________ him about ________ a lecture the following day．