—I didn’t take notes at yesterday’s meeting because I had left my pen at home.
—You ________ mine. I ______ it.

—I didn’t take notes at yesterday’s meeting because I had left my pen at home.

—You ________ mine. I ______ it.

—I didn’t take notes at yesterday’s meeting because I had left my pen at home.

—You________mine.I________it.

A．must have borrowed；wasn’t using

B．may have borrowed；wasn’t using

C．should have borrowed；hadn’t used

D．could have borrowed；wasn’t using

—I didn’t take notes at yesterday’s meeting because I had left my pen at home.

—You________mine.I________it.

A．must have borrowed；wasn’t using　　 B．may have borrowed；wasn’t using

C．should have borrowed；hadn’t used　　 D．could have borrowed；wasn’t using

—I didn’t take notes at yesterday’s meeting because I had left my pen at home.
—You ________ mine. I ______ it.

1. A.
   must have borrowed; wasn’t using
2. B.
   may have borrowed; wasn’t using
3. C.
   should have borrowed; hadn’t used
4. D.
   could have borrowed; wasn’t using