In Singapore, people who litter and dirty the streets are more likely ________.
There is a small group of words which even some native speakers and writers of English find ______.
. I’ll come and see you _____ I go to Hong Kong.
____ the rain has stopped, let’s start again.
I went to bed very late that night, _____, early the next morning.
—How long did you do your homework? —______.