He hurried to the booking office only______ that all the tickets had been sold out.
A. to tell B. to be told C. telling D. told
They urged that the library_______ open during the vacation.
A. must be kept B. is kept
C. would be kept D. be kept
The church clock began to _______ twelve.
A. hit B. beat C. strike D. touch
-----Is this the first time you______ Chengdu?
-----No. But the first time I______ here, the city wasn’t so beautiful
A. visited; came B. visited; have come
C. have visited ; have come D. have visited; came
Has the doctor _______ called for?
A. referred to being B. referred to been
C. referring to being D. referred to be
Every student is required to watch the teacher carefully before ___ the chemistry experiment.
A. performing B. taking C. picking D. having
