If the students don’t understand what their teacher is talking about, he/she hasn’t _________his/her meaning_____________.
She objects to _____ loud music _____ while she reads newspapers.
If it _____, we will go to visit the zoo.
Our English teacher _____ all the exercise books last Friday evening.
The bus came after I _____ for about half an hour.
I saw that he _____ at seven o’clock last night.