Planning so far ahead _____ no sense — so many things will have changed by next year.
A．made B．is making C．makes D．has made
—Is everyone here? —Not yet ... Look, there _____ the rest of our guests!
A．come B．comes C．is coming D．are coming
Listening to loud music at rock concerts _____ caused hearing loss in some teenagers.
A．is B．are C．has D．have
Such poets as Shakespeare _____ widely read, of whose works, however, some _____ difficult to understand.
A．are; are B．is; is C．are; is D．is; are
The factory used 65 percent of the raw materials, the rest of which _____ saved for other purposes.
A．is B．are C．was D．were
One third of the country _____ covered with trees and the majority of the citizens _____ black people.
A．is; are B．is; is C．are; are D．are; is
