Grammar : preterit / present perfect

It ....................(be) very cold this year. I wonder when it is going to go warmer.

He .........................(not smoke) for two weeks. He is trying to give it up.

I ..............................(fly) over Loch Ness last week.

....................(see) the full moon last week ?

Shakespeare ....................(write) a lot of plays.

We ...............(just/miss) the bus. Now we'll have to walk.

He .................... out ten minutes ago.

Yesterday, I ..............(leave) home at 8 am and ............(get) in the office for 9 am.

I can't go out because I .......................... my work .

He .....................................(just go) out.