Someone is ringing the doorbell. Go and see _______.
A. Who is he B. who he is C. Who is it D. who it is
. One advantage of playing the guitar is _____ it can give you a great deal of pleasure.
A. how B. why C. that D. when
What you said just now ______ me of that American professor.
A. informed B. reminded C. memorized D. mentioned
Looking up, I saw that some children _____ rags were looking at me silently as I ate.
A. by B. in C. with D. on
When asked ____ they needed most, the kids said they wanted to feel important and loved.
A. what B. why C. whom D. which
When I came in, I saw Dr. Li ______ a patient.
A. examine B. examined C. to examine D. examining
