1．I got this bicycle for ________： my friend gave it to me when she bought a new one.
A. everything B. something
C. anything D. nothing
[解析]句意：这辆自行车我没花钱：我朋友买了新自行车，就把这辆旧的送给我了。for nothing 表示“免费；徒然”，符合语境。其他三项均与后面语境相悖。
[答案]D
2． The two girls are so alike that strangers find ________ difficult to tell one from the other.
A. it B. them
C. her D. that
[解析]句意：这两个女孩长得如此相似以至于陌生人很难把她们区分开来。在 that 引导的结果状语从句中，谓语动词find 的真正宾语是 to tell one from the other，设空处需用形式宾语，而四个选项中只有 it 可以作形式宾语，所以选择A。
[答案]A
