问题
选择题
| Jack wasn't saying anything, but the teacher smiled at him _____ he had done something very clever. |
A. as if B. in case C. while D. though |
答案
答案：A
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| Jack wasn't saying anything, but the teacher smiled at him _____ he had done something very clever. |
A. as if B. in case C. while D. though |
答案：A