She ___here a minute ago.
A. is
B. was
C. be
D. been
They ___a new house at the foot of the hill last year.
A. Build
B. built
C. builds
D. was building
Sorry, you can’t take the typewriter away, I ____it.
A. use
B. used
C. have used
D. am using
President Obam_____China in May.
A. visits
B. is to visit
C. is visiting
D. visited