Russia

1. B. was - We use the past tense of "be" (was) for actions or states that happened in the past. "Where was Caroline now?" doesn't make sense grammatically or logically.
2. A. am - This sentence describes your current state of being, so the present tense of "be" (am) is correct.
3. A. were - "Kari and Caroline were on the train last Friday" refers to a past event, so we use the past plural tense of "be" (were).
4. B. was - "It was on the table" indicates the computer's location in the past, so we use the past tense of "is" (was).
5. A. is - This question asks about Karl's current location, so we use the present tense of "be" (is).
6. A. were - "They were thirsty this morning" shows a state of being in the past, so we use the past plural tense of "are" (were).
7. B. was - "Yesterday I was hungry" describes your state of hunger in the past, so we use the past tense of "am" (was).
8. B. was - "Caroline was in a car accident last week" refers to a past event, so we use the past tense of "is" (was).
9. A. are - This question asks about your current state of being, so we use the present tense of "be" (are).
10. A. was - "There was your computer last night?" inquires about a past location, so we use the past tense of "is" (was).