Ⅰ.单句语法填空
1．I found it hard to_convey (convey)my feelings in words.
2．Let your child know that you expect him or her to act appropriately(appropriate) toward other people.
3．Every moment of every day，energy is being transformed from one form into another.
4. Knowing that they had arrived safely took a load off my mind.
5. I have offered to paint the house in exchange for a week's accommodation.
