b. present perfect
c. future perfect
Answer:
The present perfect progressive form of the verb discuss that completes the sentence is "have been discussing.
Explanation:
The present perfect progressive tense is used to talk about a continous action that has been finished at some point in the past or that was initated in the past and continues to happen. This tense is formed with the auxiliary verb HAVE/HAS plus BEEN and the present participle of the main verb (-ing).
They replied, "Well, we're waiting for next week's weather forecast."
a. correctly
b. incorrectly
a?
limit + -ed
fear + -ing
shop + -er