Understanding 'Two' and 'Too' in English Grammar

The question asks us to complete the sentence: "After playing _________ hours of tennis, I am feeling _________ tired to walk back." We need to choose the correct words to fill in the blanks from the given options. This involves understanding the correct usage of the words 'two' and 'too'.

Word Analysis: 'Two'

• The word 'two' is a number. It represents the quantity 2.
• For example: "I have two apples." or "She worked for two hours."

Word Analysis: 'Too'

• The word 'too' has a couple of meanings:
• It can mean 'also' or 'in addition'. For example: "I want to come too."
• It can mean 'to an excessive degree' or 'more than is desirable/possible'. For example: "It's too hot outside." or "He is too young to drive."

Applying Words to the Sentence

Let's look at each blank in the sentence: "After playing _________ hours of tennis, I am feeling _________ tired to walk back."

1. First blank: "_________ hours of tennis"
   • Here, we are referring to a quantity of hours. Since 'hours' is a countable noun, we need a number.
   • The word 'two' (the number 2) fits perfectly here, indicating a specific duration of time spent playing tennis.
2. Second blank: "feeling _________ tired to walk back"
   • This part of the sentence describes the intensity of the feeling 'tired'. The phrase "to walk back" implies that the tiredness has reached a level where walking back is difficult or impossible.
   • The word 'too', meaning 'to an excessive degree', accurately conveys that the speaker is excessively tired, preventing them from walking back.

Summary of Word Usage

Therefore, the correct combination to complete the sentence is 'two' for the first blank and 'too' for the second blank.

The completed sentence reads: "After playing two hours of tennis, I am feeling too tired to walk back."