Question

Can you ____ me ten dollars? I'll pay it ____ to you tomorrow

1. A.
   borrow; off
2. B.
   lend; off
3. C.
   borrow; back
4. D.
   lend; back

Answer 1

D
pay sb. money back =" pay" money back to sb. 表示“还某人的钱”或“偿付（借款）”。pay sb. off表示“付清工资解雇某人”和“偿清（欠款）”。