Many a young scientist ________ engaged in the research work.
A: have
B: has
C: have been
D: has been
A: have
B: has
C: have been
D: has been
D
举一反三
- Many a student in my class ______ America. A: have been to B: have gone to C: has been to D: has gone to
- Many a plan ______ to fight against pollution. A: have been worked out B: have been worked on C: has been worked out D: has been worked on
- Many a student_____________plant trees. A: has been sent to B: have been sent to
- All possible means __________ been tired.Every possible means __________ been tired. A: have，has B: has，has C: have，have D: has，have
- 12. Many a student ________ the importance of learning a foreign language. A: have realized B: has realized C: have been realized D: has been realized
内容
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All possible means ，but not a means an obvious effect。 A: have been tried; has B: have tried; has C: has been tried; have D: have been tried; have
- 1
_______ to work long hours alone in the lab and sacrifice his or her personal life. A: Many a scientists have B: Many scientist has C: Many a scientist has D: Many scientists
- 2
The mayor of Beijing says that all construction work for the Beijing Olympics_________ by 2006. A: has been completed B: has completed C: will have been completed D: will have completed
- 3
A good deal of money ________ spent on books. A: have B: has C: has been D: have been
- 4
Many lakes and rivers ________ by industrial waste. A: A have polluted B: B have been polluted C: C had been polluted D: D has been polluted