Multiple choice

Directions: Select the correct word or phrase to complete a grammatical and idiomatic sentence.

Having ______ only in salt water before, I found it a little difficult to swim in fresh water.

  1. swam

  2. swum

  3. had swam

  4. swimming

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

(2) swum. Third form of the verb with 'having'.