At first Bob was puzzled by Virginia s waving, but then it _____ his mind that she was trying to tell him something.
Do you have any difficulty ________?
Sometimes ______English is quite different from ______English in many ways.
_____ of the students who took part in the military training is 1450.
_____ the early bus, Tom got up much earlier than usual that morning.
The English teacher told us this morning that we _____ an exam at the end of this month.