Question

The servant ________________ all the ingredients thoroughly. (wash) *

wash
had washed
washing​

Answer 1

Answer:

The servant had wash all the ingredients thoroughly. (wash)

Answer 2

Answer:

The servant had washed all the ingredients thoroughly.

Explanation:

Here,

It is given in past tense that the servant washed all the ingredients thoroughly. We can't use wash as it's against the rules of grammar and it's in simple present tense and washing is present continuous tense.