题目内容
(请给出正确答案)
[主观题]
Past tense can’t be used in an abstract.
提问人:网友plateau
发布时间:2022-01-07
A.simple past tense
B.simple future tense
C.present perfect tense
D.past perfect tense
A、the future tense
B、the past tense
C、the present tense
D、the progressive tense
A、past tense
B、present tense
C、present continuous tense
D、future tense
A.present tense
B.past tense
C.future tense
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