Question

5. —How long may I       your bike?

—For a week. But you mustn't       it to others.

   A. borrow；lend   B. keep； lend

   C. lend； borrow   D. keep； borrow

Answer 1

5. B 

borrow意为“借人”；end意为“借出”，lend sth. to sb.意为 “把某物借给某人”；“借多长时间”用keep,keep为延续性动词。how long和延续性动词连用，故第一个空为keep；由“但是你禁止把它借给别人”可知，第二个空为lend。故选B。