He said he was not optimistic the future of that country.
_________ I traveled by boat, I got seasick.
What a good idea it is that Sarah and Dave are supposed to ______________ as movie characters for the party.
Such a good opportunity may not come again, so you ____________ let it go this time.
The world is changing rapidly and sometimes we find it almost impossible to ________ the advances in science and technology.
We believe _____ Shanghai we’ll see in the year 2010 will be quite _____ different city from what it is now.