My father________on business for two weeks.He’ll return in three days.A.has been awayB.leftC.has left
A new gym ________ in our neighbourhood next year.
You ________ wait for him. I’m not sure whether he’ll come back or not today.
—Why do you look so tired? —Because we ________ for three hours without stopping.
We won’t start the meeting ________ the teacher arrives.
The workers are trying to ________ what’s wrong with the machine.