规则
A clause needs a finite verb (a verb with tense). "-ing" forms and "to + verb" cannot be the main verb on their own.
分句需要有时态的限定动词。-ing形式和“to+动词”本身不能充当谓语。
✔ 正确： The new law requires all buildings to have solar panels.
✘ 错误： The new law requiring all buildings to have solar panels.
→ 改正： Change "requiring" to "requires" so the sentence has a main verb.
技巧: If the sentence has no other main verb, choose the option with tense (e.g. "requires", "required").
练习：10题
Which choice completes the text so that it conforms to the conventions of Standard English?
由AUSLEX原创的讲解和题目，并非College Board官方资料。SAT是College Board的商标。