watch post not stop fail listen
1 Don't forgrt ____ this letter for me.
2 My brother enjoys ____ TV news.
3 Once Big Ben ____ to give the correct time.
4 We will have no water to drink or use if we ____ wasting it now
5 I'm sorry I didn't hear you because I ____ to music.
參考答案:1.to post
forget to do sth要做某事
2.watching
enjoy doing喜欢做某事
3.failed
过去时
4.don't stop
5.was listening
过去进行时