--Mr. Lee__________to a student when I entered the classroom this morning.
---He is very patient________ he is young.
A. talking; but B. talks; though
C. was talking; though D. talked; however
After running a 1000-metre race, he was________.
A. out of breathe B. breathed heavily
C. took a deep breath D. out of breath
The country life he was used to ____ greatly since 1992.
A. change B. has changed
C. changing D. have changed
In our school library there_______ a number of books on science, and in these years the number of them_______ growing larger and larger.
A. are; is B. is; are
C. have; are D. has; is
The rivers will become dirtier and dirtier________ we take action to protect them.
A. since B. if C. until D. unless
I’m sorry to hear that quite two people died _______ the earthquake at the beginning, but later still more died ________ the diseases after the quake last year.
A. of; of B. from; from
C. of; from D. from; of
