For a long time we walked without saying ______ word and eventually Jack was the first to break ______ silence.
They are not only a source of ______, but also an important way of learning.
Teachers assign homework for ______ purposes. In some cases, teachers seek to review and solidify materials being covered in class.
-Peter has been eating sweets all day. -No ______ he is not hungry.
There are ______ flowers and trees shown in the park and ______ people go to have a look,
I admire him greatly as a player and a manager. He is a ______ figure.