News reports say peace talks between the two countries have __________ with no agreement reached.

The teacher frowned ___ annoyance when a studentfell asleep during his lesson.

How long have you been running —Since ______ .

It is far better for one to drink milk，________one gets nutrients, than to drink coffee，________contains no nutrients at all.

_______ no ad during TV plays—Great move! I cannot tolerate those annoying adsappearing every several minutes