Revising tense forms , gerund, infinitive

How long .... here?

.....I help you with the cooking?

He denied ... the money.

She .. for 12 hours before she finished everything.

When I was a child I ... running every day/

What ... at 10 o'clock last night?

He hasn't left the office .. .

They will have finished .... 8 o'clock.

I am afraid I ... to come to the party.

We went into town ... some new clothes.

We'd rather .... to bed early last night

Remember ... the door when you leave.

"You look slimmer." - "Yes, I ...12 kilos."

"I am having trouble with this exercise" - "Don't worry. I ...you."

"Have you ever been to China?" - "Yes, I ... there in 1990"

"How long have you worked here?" - "By the end of the month I .... here for three years"

"We'll need some cola for the party" - "I ... some"

"I need to give a message to Susan." - "I ... her at the office this afternoon"

"have you ever met a famous person?" - "Yes, I .... Maria Calllas once"

"These shoes aren't at all comfortable." - "You shouldn't ... them."

"What's wrong with Lynda?" - "She ... problems at work lately."

"What's Pam doing?" - "She seems ..... ."

"How long have you been working here?" - ".... 6 months."

"I can't stand this any longer!" - "Calm down. There is no point ... upset."

"How long does it take you to write a novel?" - "By December I ... on this one for 3 years."