You can use a large plastic bottle, ______ cut off, as a pot to grow flowers in. 

 --What do you think made Celia so happy?--______ a prize in the recent competition.

We drove to the airport to meet an expert from Germany, about 50 years old, his hair ________.

With a huge amount of food ________，all of the staff are busy preparing for the dinner tonight.

_________left before the deadline, it doesn’t seem likely that John will finish the job.