B.C.D四个选项中,选出可以填入空白处的最佳选项。 1.A subway is an effective way to solve traffic problems in_____big city. It has evident advantages, such asspeed and conveniencE. A.the; the a; the a; / the; a
B.C.D四个选项中,选出可以填入空白处的最佳选项。 21. The manager of the company told us that very little ____ was made of the waste material in the past. A. cost vale use Matter