單格填空第 32 題
Burke is often on slippery ground when it comes to her primary sources; especially ______ is the mode by which she gathered her oral evidence.
| Blank |
|---|
| (A) crucial |
| (B) passable |
| (C) dubious |
| (D) laudable |
| (E) ingenious |
出處：PP2, Practice Test 2, V2, #1
難度：Hard