—Where is Peter? I can't find him anywhere.
—He went to the library after breakfast and his essay there ever since.
A. wrote B. had written
C. has been writing D. is writing
Mary really hard on his book and thinks he’ll have finished it by Friday.
A. worked B. has been working
C. had worked D. has worked
At college, Barack Obama didn’t know that he the first black president of the United States of America.
A. was to become B. becomes
C. is to become D. became
More expressways in Sichuan soon to promote the local economy.
A. are being built B. will be built
C. have been built D. had been built
Jane can’t attend the meeting at 3 o’clock this afternoon because she ______ a class at that time.
A. will teach B. would teach
C. has taught D. will be teaching
Despite the previous rounds of talks, no agreement______ so far by the two sides.
A. has been reached B. was reached
C. will reach D. will have reached
