50 ! !

7) 1. most northernest 3. northernest
2. northerner 4. most northerner

8) 1. so 2. as 3. to 4. than

9) 1. starts 2. start
3. started 4. is starting

10) 1. has appeared 3. appeared
2. had appeared 4. was appeared

11) 1. know 2. knows
3. is knowing 4. are knowing​​

ответ: 7) 1; 8) 4; 9) "-" 10) 4; 11)  2.

Объяснение:

7) - most northernest - превосходная степень качественного прилагательного.

8) than - по смыслу подходит

9) - "-"

10) was appeared - past simple

11) knows - Everyone Knows is the correct answers.

Everyone come under, 3rd person singular pronoun.

In the Simple present tense, with every singular 3rd person noun or pronoun, ‘s’ is added to the verb.

For Example:

I eat an apple. (1st person singular, simple present tense)

You eat an apple. (2nd person singular, simple present tense)

He eats an apple. (3rd person singular, simple present tense