Sure! Here are the questions completed with the correct form of the verbs:

1. 'How **do you know** Maria?' 'She's in my class at school.'
2. '(Does the cake taste) good?' 'Yes. It's delicious. You should have some.'
3. 'You told Lisa that I'm not pulling my weight. What **did you mean**?'
4. 'What **do you think** that you will get the job?' 'I'm not sure. There were a lot of candidates.'
5. 'What **are you thinking** about right now?' 'Just the football match tomorrow.'
6. 'How much **does an iPhone cost** these days?' 'They're all different prices.'