Though the ship sunk, all the people on her____ be resuced.

-Are you happy with your new computer?—– No, it is _______ me a lot of trouble.

How do you often go to school——I _____take a bus ，but now I _____walking.

It _______ over ten days since the dog _______.

eeply absorbed in work, _____ he often was, hewould forget all about eating or sleeping