Degrees of Comparison positive comparative superlative Safe larger Pretty sadder Horrible luckier The ugliest wonderful heavier tired colourful The most dangerous More expensive nicer The oldest

1. Look! He is leaving the house.
Explanation: In this sentence, we use the present continuous tense ("is leaving") to indicate an action that is happening at the moment of speaking ("look!").

2. Quiet please! I am writing a test.
Explanation: Here, we also use the present continuous tense ("am writing") because the action of writing the test is happening at the moment of speaking ("quiet please!").

3. She usually walks to school.
Explanation: In this sentence, we use the simple present tense ("walks") to talk about a habitual action or a general truth.

4. But look! Today she is going by bike.
Explanation: In contrast to her usual habit, she is using a bike to go to school today. Therefore, we use the present continuous tense ("is going") to indicate an action happening now.

5. Every Sunday we go to see my grandparents.
Explanation: In this sentence, we use the simple present tense ("go") because it is a regular activity that happens every Sunday.

6. He often goes to the cinema.
Explanation: The word "often" suggests a repeated action, so we use the simple present tense ("goes") to talk about his frequent visits to the cinema.

7. We are playing Monopoly at the moment.
Explanation: The use of "at the moment" suggests that the action of playing Monopoly is happening right now. Therefore, we use the present continuous tense ("are playing").

8. The child seldom cries.
Explanation: The word "seldom" means "rarely," so we use the simple present tense ("cries") to indicate a general truth about the child's behavior.

9. I am not doing anything at the moment.
Explanation: The phrase "at the moment" indicates the present time, so we use the present continuous tense ("am not doing") to describe the lack of action or activity.

10. Does he watch the news regularly?
Explanation: The auxiliary verb "does" is used to form questions in the simple present tense. Therefore, we use the base form of the verb ("watch") in this interrogative sentence.