【练习】用上面所提供的辨析词的适当形式填空
1). All dams need sound _________.
2). The vase falls over a lot because the ________ is too small.
3). The ______ of her opinion is something she read in the magazine.
Keys: 1). foundations 2). base 3). basis高考资源网版权所有 ©2005-2010
未经许可，盗用或转载本站资料者，本站将追究其法律责任！
