I _____ when it began to rain.
The teacher together with the students_______ discussing Reading Skills that____ newly published in America.
I know the journey won’t cost much, but I will take some more just _____.
---Some English idioms are difficult to understand. ---Exactly, _________ you know the meaning of each word.
--- What do you imagine _____ her look so upset? --- _____ by her teacher again.
--How do you like the plan put forward by Mr.Smith? --- Considering its real _____ , it will be worth having a try.