--May I swim in the lake, mum? --No, you_______. Look! Here is a notice “No Swimming!”
Tina wants me ______ her _____ her Chinese.
Jack goes online ________ three times a week.
_____ is important _____ us to do morning exercises every day.
----What’s wrong with you, Eric? You look so tired. ----I ______ to prepare for the final exam last night.
----I can’t find my dictionary. ----_______ you put it in that bag.