With the effects of global warming, trees their leaves much later in the year

_______ are you going to visit the sciencemuseum—Next Saturday.

I still remember the college _______ I visited in London years ago.

Frederick William I, the King of Prussia, _____ that his greatest gift to the Russian people would have _____. [ ]

Dad, I have got an award for Best Student in our school.—Congratulations! But remember not to ________ everywhere.