____ quiet, for, you see, the baby is sleeping!
A. To keep B. Keep C. Keeping D. Kept
Sadly, ____ I remember was a beautiful lake two years ago is now a smelly wasteland.
A. where B. what C. which D. there
One of the advantages with the new tool is that it is users ____. Users can handle it with less effort and more convenience.
A. friendly B. good C. well D. pleased
Suspecting him of robbing the bank, the Security Police were ___ his phone calls.
A. looking B. glancing C. monitoring D. staring
--- Are you angry? --- Yes. He should at least answer when ____.
A. speaking B. spoken to C. spoken D. speaking to
Having longed so much to have a look at the famous star, the fans looked forward anxiously ____ the live concert.
A. not to missing B. to not miss C. not to miss D. to not missing
