What tense should be used to report what was done in experiments?
A.The present tense.
B.The past tense.
C.The future tense.
D.The perfect tense.
正确答案:The past tense.
What tense should be used to report what was done in experiments?
A.The present tense.
B.The past tense.
C.The future tense.
D.The perfect tense.
正确答案:The past tense.