A.In 1981.B.In 1989.C.In 1990.D.In 2000.
A. In 1981.
B. In 1989.
C. In 1990.
D. In 2000.
【B20】
A. curious
B. conscious
C. ambitious
D. ambiguous
【C10】
A. carried
B. taken
C. given
D. put
A.materialsB.goodsC.capitalD.economy
A. materials
B. goods
C. capital
D. economy