'a' is based on prediction. It's a future situation.The test will be next week and the students hope it will be easy
There are many two syllable words whose meaning can change depending on which syllable is stressed. For example, when the stress is on the second syllable of the word “desert” (deSERT), it is a verb meaning to abandon.
I wish i didn't have to go. I am very busy.
Hope this helps , danielle x
It creates an air of suspense in the plot