We’d better hurry ______ it isgetting dark

tending to be ill, the candidate tried to run away from _______ issues, which always aroused too much debate.

We offered him our congratulations＿＿＿＿＿his passing the college entrance exams

th hastwo______ , both of whom are teachers in a school

It is recommended that the project ________ not be started until all the preparations have been made.