--Has Tommy finished his project yet?--Maybe not. He ___on it at lunch time. Let's go to have a look now.
I suggested the meeting ______ at the manager’s office.
Today, we _____ work as hard as people did in the past.
It was because I was caught in the traffic jam ________ I came to school late this morning.
There will be a new park in the center of the city, ______?
Is this museum ___________ he wishes to visit?