--- I rang you at about nine, but there was no reply.
--- Oh, that was probably _______I was seeing the doctor.
A. why B. when
C. what D. that
---I lost my cell phone yesterday. Can you tell me _______ buy one like yours?
---Well, there is a department store just around the corner.
A. where can I B. what can I
C. where I can D. when I can
Along the way, students _______ school uniforms stopped to look at us when we were cycling on campus.
A. dressing in B. dressed in
C. wore D. wear
I am fond of my sister but she has one serious shortcoming. She _______ be really impatient.
A. may B. must C. can D. should
---Can I smoke here?
---Sorry. We don’t allow _______ here.
A. people smoking B. people smoke
C. to smoke D. smoking
Only by increasing the number of doctors by 50 percent _______ properly in this hospital.
A. can be the patients treated
B. the patients can be treated
C. can the patients be treated
D. treated can be the patients