41.Tracy couldn't _________where she put the paperwork!
(A)remember
(B)remembers
(C)remembering
(D)remembered
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統計: A(3721), B(179), C(199), D(212), E(0) #340796
統計: A(3721), B(179), C(199), D(212), E(0) #340796
詳解 (共 5 筆)
#370620
could 是助動詞,所以是原形。
101
0
#1409366
助動詞後面一律加原形動詞
57
1
#363639
為何用原型?
6
3