The correct form of the verb to fill in the blank is "have been" because the sentence is in the present perfect tense.A、hasB、hadC、haveD、has been
The correct form of the verb to fill in the blank is "have been" because the sentence is in the present perfect tense.
A、has
B、had
C、have
D、has been
发布时间：2025-09-08 05:58:23
