The children were heard ______ a lot of noise there.
A. made B. make
C. to make D. being made
That is the only way we can imagine ____ the overuse of water in students’ bathrooms.
A. reducing B. to reduce
C. reduced D. reduce
He has been living in this country _______ since May 2012, with no visa.
A. apparently B. relatively
C. legally D. illegally
I regret _____ you that you fail to pass the exam, so you have to take a make-up examination.
A. telling B. having told
C. to tell D. to have told
Try to ______ at least half an hour each day for reading English and you'll make progress.
A. release B. set aside
C. adapt to D. add to
I don't know whether you happen ____ it, but I'm going to study in USA this September.
A. to be heard B. to be hearing
C. to hear D. to have heard