Fill in the Blanks

The given question requires the use of Past Perfect Tense as suggested by the use of "before the rain started". Answer: (4)

Here, the sentence presents an imagined situation of the past and we use would/could have to tell about the outcome if things had been according to the imagined situation.

We use the perfective will have when we are looking back from a point in time when something will have happened.

In a Type 1 conditional sentence, the tense in the 'if' clause is in the simple present, and the tense in the main clause is in the simple future. The given part of the sentence is in simple present. Thus, the main clause will be in simple future tense. 

Here, the sentence presents an imagined situation of the past and we use would/could/should have to tell about the possible outcome if things had been according to the imagined situation. 

Tthe given blank needs a plural verb because of the noun “his friends” whereas (1) is a singular verb.

Here, the sentence presents an imagined situation of the past and we use would/could/should have to tell about the possible outcome if things had been according to the imagined situation. 

A certain situation of the Future is referred to here. So, Future Perfect Tense should be used.

Tthe subject refers to only one person so the verb has to be singular.   Answer: (1)

The sentence is in Past Tense in which a situation is given that refers to another situation before it. So, the use Past Perfect Tense is correct here.

Susan complained. Thereafter the principal called. The complaint has to be in the past tense. Answer: (1)

Susan's complaint is in simple past tense. Here, being unfair occured in time before her complaint. So, it has to be in the Past Perfect Tense.

Susan complained...the principal called Answer: (3)

Susan complained...the principal called....and warned. Answer: (4)

The sense of the given paragraph refers to the Present Perfect Tense, which must use “has/have + III form of verb” .Answer: (2)