Mr. Green _______ his lessons when I went into his office.
The story of Tom Sawyer ______ in Missouri, America, in the 19th century.
The medicine may help with your illness, but it may make you _____ , so you must be careful not to drive a car after taking such a medicine.
I have to buy _________of the two books because I don’t know which to choose.
. — How about my fish? — _____. Cooking is really your field.