---Why you are so worried? --- I ___for my little son all the afternoon, I don’t know why he hasn’t come back so late.
Half of ________ surveyed in 16 countries say they go first to their closest friend to share their deepest wishes and darkest fears.
I don't want anyone ________ me, telling me what to do and what not to do.
—Alice promised me to come round to keep you company today. —But she ________. I've been alone all day.
It is impossible to cooperate with a person ________ methods are completely opposed to your own.
Butterflies ________ a sweet liquid produced by flowers, which bees and other insects collect.