--- Each of the students working hard at their lessons the book.
--- So have I.
A．is reading B．has read C．read D．reads
It’s quite obvious that the aging population in China will cause heavy pressure on
whole society in the future.
A．a; 不填 B．不填；不填 C．the; a D．a; the
Nobody believed his reason being absent the class that he had to meet his uncle at the airport.
A．of; for B．for; from C．of; from D．for; at
--- Is there a heavy rain in the evening?
--- There be. I’ll make a phone call to find it out.
A．must B．will C．might D．can
The award will be given to does the best job in the field.
A．who B．whomever C．whoever D．anyone
With modern equipment, many mysteries have to light in recent years.
A．brought B．come C．thrown D．appeared
