Complete each pair of sentences with the same verb in the correct form. Verbs: appear, feel, fit, have, look, see, smell, taste, think.

Let's complete each pair of sentences using the provided verbs in the correct form. 1) I think this is their house, but I'm not sure. I am thinking hard about buying a new car. Explanation: The first sentence expresses an opinion or belief, so we use the simple present tense "think". The second sentence describes an ongoing mental process, so we use the present continuous tense "am thinking". 2) This perfume smells fresh. She smells the perfume on her wrist. Explanation: The first sentence describes a quality of the perfume, so we use the simple present tense "smells". The second sentence describes the action of using one's nose to perceive the scent of the perfume, so we use the simple present tense "smells". 3) Lemons taste sour. The chief tastes the sauce. Explanation: The first sentence describes the inherent flavor of lemons, so we use the simple present tense "taste". The second sentence describes the action of someone using their sense of taste to evaluate the sauce, so we use the simple present tense "tastes". 4) John has two sisters. We are having great time at the party. Explanation: The first sentence describes possession, so we use the simple present tense "has". The second sentence describes an experience that is currently happening, so we use the present continuous tense "are having". 5) I see them now. They are crossing the street. John sees a dentist today because he has a toothache. Explanation: The first sentence describes a present observation, so we use the simple present tense "see". The second sentence is supposed to convey the idea of John going to see a dentist today, however seeing a dentist is not a thing we usually say as `see`, so instead, `John is seeing a dentist today because he has a toothache.` or `John has an appointment with a dentist today because he has a toothache.` would be more appropriate here. Because seeing a dentist is understood as having an appointment. So the verb should be 'see'. 6) I still feel a little hungry after dinner. I feel a little better today. Explanation: The first sentence describes a continuing state of being, so we use the simple present tense "feel". The second sentence describes a current state of being, so we use the simple present tense "feel".