UNIT 7 – WORLD POPULATION CHOOSE THE WORD THAT HAS THE UNDERLINED PART...

17. Her friends are sad because she isn’t here.

a. If she is here, her friends won’t be sad.

b. If she were here, her friends wouldn’t be sad.

c. If she had been here, her friends wouldn’t have been sad.

d. Her friends will be sad unless she is here.