I'LL RETURN THE BOOKS TO THE LIBRARY IF I ... TIME.A. HAVEB. HADC...
174. I'll return the books to the library if I ... time.
a. have
b. had
c. will have
d. would have
--> a
174. I'll return the books to the library if I ... time.
a. have
b. had
c. will have
d. would have
--> a