Many people have donated that type of blood; however, the blood bank needs _____.
|
A．some |
B．less |
C．much |
D．more |
Parts of the cave have been badly affected by rain and to the air.
A. express B. excavate C. exposure D. expand
By the time Jack returned home from England, his son from college.
A. graduated B. has graduated C. had been D. had graduated
The Naxi believe that they came from a creature called Tabu, help them hatch from magic eggs.
A. who B. whom C. that D. which
Hardly Mike picked up the ball when another player took it form him.
A. have B. has C. had D. have been
