-Do you know the girls who are in the living room? -Yes, they are my classmates. They are celebrating Lucy's _ birthday. A .thirteen B. the thirteenth C. thirteenth
I did my homework very ______, so my father looked ______.
The structure of the sentence “She found the trip boring” is ______.
I have more paper clips than_______, but my CDs are fewer than________.
I think _____necessary _______ to take more exercise.
I take exercise every day and I’m _______ than before.