THEY’RE CLOSE FRIENDS. THEY ... EACH OTHER FOR A LONG TIME.A. KNOW...
22. They’re close friends. They ... each other for a long time.
a. know
b. have known
c. have been knowing
d. knew
b
22. They’re close friends. They ... each other for a long time.
a. know
b. have known
c. have been knowing
d. knew
b