When I ___ in the kitchen, nothing made me feel better than preparing the eggs and serving them just the way the customers wanted.
After the summer vacation, the professor, together with his fellow teachers, ______ the scientific experiment
I never doubt ________ he was dedicated to our firm.
—How many students passed the math test? — ________, for it was too much for them.
—what do you think of the matter? —Don’t you remember I have already ________ that it was troublesome?
As a result of destroying the forest, a large ________ of desert ________ covered the land.