Put the verbs in the brackets in the correct form.

1. Let's .............. (finish) .............. (do) our homework quickly.
2. It's much faster .............. (travel) by plane than by train.
3. The tourists .............. (wait) for their guide for two hours now.
4. Before .............. (start) my work for the new company last month, I .............. (do) different jobs at the post office.
5. 'Who .............. (you/ invite) to your birthday party next Sunday?'
'Lots of friends, of course.'
6. The weather's awful. If it .............. (not stop) raining for a while, I .............. (can not) take the dog for a regular walk.
7. We .............. (know) each other for a month only, but we .............. (already become) good friends.
8. I don't think I .............. (resume) my studying next term. I'd like (rest) .............. a bit longer.
9. Nobody knows how .............. (operate) the switchboard.
10. The new tax rates .............. (not announce) yet. It .............. (probably / do) tomorrow.