Ⅰ.单句语法填空
1．He promised to meet us at the parking lot but hasn't turned up yet.
2．He made an apology (apologize) to me for not keeping his word.
3．It is obvious that without the help of the whole society, there would be no new school today.
4．The brave soldier jumped into the river to save the drowning (drown) child.
5．Today's homework was easy to do (do), so Mike finished it quickly and went out to play.
6．I find that doing physical exercise a couple of times a week makes me feel more energetic (energy)．
