Either Sam or Tom __________ an exam at the moment. A. are having B. is having C. were having
Their school has more than two _____ teachers and _____ students.
The____ you are , the ___ mistakes you will make .
I won’t leave the classroom until my homework ______.
_______is possible to happen if you pay attention to safety.
— Did you go to bed early last night? —No. I watched a _____ movie, so I didn't go to bed until 11 o’clock.