46. Maria is good at languages. She _____________ French, Spanish and German.
A. speaks               B. is speaking               C. has spoken            D. has been speaking
47. So far, he _____________ five stories for children.
A. writes               B. is writing                  C. has written  D. has writing
48. We _____________ for their answer for two months already
A. wait                B. are waiting                 C. have been waited       D. have been waiting
49. She _____________ since Monday.
A. is sick             B. is being sick               C. has been sick         D. has been being sick
50. She _____________ since noon. Should we wake her up?
A. sleeps            B. is sleeping                   C. has been sleep       D. has been sleeping