23. ---- Do you know our town at all?
-----No, this ________ the first time I _________ here.
A. was; has come B. is; come C. is; had come D. is; have come
24. All the doctors in the hospital insisted that he _____badly wounded and that he____at once.
A. should be; be operated on B. were; must be operated on
C. be; was operated on D. was; be operated on
