In some places, red indicates sadness, as in South Africa, _______ it is the color people wear when they mourn.
A. which B. where C. when D. what
The fans _____the names of the band members when they appeared at the airport.
A. had screamed out B. were screaming out
C. would scream out D. have screamed out
He is really nervous. He ______back and forth all the night waiting for the results.
A. has been walking B. had walked
C. walked D. is walking
Mary _______as a secretary in this company for twenty years and now she stays at home taking care of her own garden.
A. has served B. had served
C. is serving D. served
The company invested 80 percent of the money in training the staff, the rest of which ____saved for other purposes.
A. is B. are
C. was D. were
It was MaYun’s persistence and innovation ______contributes to the success in his career.
A. which B. what C. who D. that
