No wonder he looks tired! He’s been studying for the exams all week, ____ he’s been working in a bar at night.
A. while B. but C. plus D. as
____ 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
