My father took me to try the paragliding. It was very ___________.
There are lots of _____that students have to follow in school.
Fresh food is good for you . But you have to ______it first because sometimes it a little dirty.
Ther will be less pollution ___more people use public transportation .
Our teacher was very happy because _____failed the examination.
-- Look! Someone ____ the icebox back to the corner. -- Well, it wasn’t me. I didn’t do it. A. has moved B. is moving C. was moving