Answer:

The next day:

Answer:

The third question:

Answer:

The fourth question:

Answer:

The fifth question:

Answer:

This part of the extended materials mainly examines the knowledge points of general gestalt:

The past tense indicates actions that happened at some time in the past or simply describes past events, emphasizing actions; The present perfect tense occurs in the past, emphasizing the influence of the past on the present and the influence.

In the past, it was often used with specific adverbials of time, but now the perfect tense is usually used with vague adverbials of time or not. The perfect aspect is divided into the present perfect aspect and the past perfect aspect. "Perfect aspect" indicates the verb form in which an action or situation has been completed. The perfect aspect consists of the auxiliary verb have+ the -ed participle of the active word.

If the auxiliary verb have takes the form of the present tense, it constitutes the present perfect tense, and if the auxiliary verb have takes the form of the past tense, it constitutes the past perfect tense.