They heard the party was because of exam.
There was something wrong with the line. We couldn’t ______ each other clearly.
Mr. Smith told his son _____ the football match because of the exam.
--- Excuse me, may I come in?--- Not yet. Please wait on your chair _____ your name is called.
Neither the headmaster nor the teachers _____ take a vacation next week.
--- Could you please tell me _____?--- About twenty minutes ago.