Question

1. Had quit (a. had left, b. had found, c. had kept quiet)

2. To be in vain (a. useful, b. useless, c. continuous)

3. To probe (a. to take help, b. to search, c. to hang)

4. Hard to believe (a. unbelievable, b. not able to understand, c. difficult)​

Answer 1

Answer:

1. Had left

2. useless

3. to search

4. unbelievable