She _____ as the first lady of Republic of Korea instead of her mother for five years when her father ruled the country.
A．serves B．has served C．had served D．served
Generally speaking, green products refer to all goods that are environmentally______.
A．suitable B．relevant C．friendly D．available
After his wife was killed in the earthquake, it was his daughter _____ managed the house and accompanied him
A．whom B．that C．which D．what
Make sure to turn off the gas after you take a bath, which would ___ cause danger.
A．therefore B．somehow C．otherwise D．meanwhile
Mo Yan, _______penname means “Don’t speak”, won the 2012 Nobel Prize in literature.
A．whose B．which C．who D．what
Students urged that the school library ______open during the long vacation.
A．be kept B．kept C．must keep D．must be kept
