Complete the following sentences with the appropriate tense
What ... when I called you last night?
- did you do
- were you doing
- you did
- do you do
... my wife? Let me introduce you.
- Have you met
- You have met
- You met
- Did you meet
I never ... my grandmother. She died before I was born.
- have met
- has met
- met
- was meeting
The birds ... when I ... up yesterday morning.
- are singing / wake
- were singing / woke
- sang / was waking
- was singing / woke
I ... never really ... how this machine works.
- didn't ... understand
- haven't ... understood
- was ... understanding
- have ... understood
I ... your father ... with us to the shops.
- wasn't knowing ... was coming
- didn't know ... came
- didn't know ... was coming
- wasn't knowing ... came
It ... a long time since I laughed so much.
- was
- is
- 've been
- 's been
We ... just ... back from holiday.
- 've ... come
- 're ... coming
- 's ... coming
- come
I recognised you as soon as I ... you.
- see
- seen
- saw
- sees
I was sitting in my garden when a bee ... me
- sting
- stung
- 's stung
- 've stung