Which tense is correct? They waited / were waiting until everybody had left /had been leaving the bank and then they broke in / were breaking in through the window.

Is this sentence right or wrong? (If it's wrong, correct it.) I've been knowing him for a few months, but I've only been meeting his sister once.

Is this sentence right or wrong? (If it's wrong, correct it.) Before the accident he'd never been thinking anything like this would happen to him.

Is this sentence right or wrong? (If it's wrong, correct it.) When she was getting home: her husband was watching football on television.

Is this sentence right or wrong? (If it's wrong, correct it.) When I arrive at the station, my parents will wait for me.

Which tense is correct? Tom walked / was walking home when someone called / was calling out his name

What's the difference between these two sentences? a What do you think? b What are you thinking?

What's the difference between these two sentences? a He's very rude. b He's being very rude.

Is this sentence right or wrong? (If it's wrong, correct it.) Tom was exhausted because he'd been working too hard.

Which tense: Present perfect simple or continuous? Oh no! The train ____ (stop) again! I ____ (sit) on this train for hours and I ____ (already / miss) my first meeting!

Which tense is correct? As soon as Cathy shut the car door, she realised /was realising she had left /had been leaving the keys inside.

Is this sentence right or wrong? (If it's wrong, correct it.) By the time the emergency food supplies arrived, 30 people had been dying.

Which tense is correct? He is playing / has been playing tennis since he started/ was starting school.