As far as I'm concerned, all he's good at ________________making up the most improbable excuses anyone has ever heard.a.he isb.hisc.presentlyd.is

As far as I'm concerned, all he's good at is making up the most improbable excuses anyone has ever heard.

Step 1: Read the given sentence carefully. Step 2: Identify the missing word in the sentence. Step 3: Look at the options provided: a, he is, b, his, c, presently, d, is. Step 4: Analyze each option and determine which one fits grammatically and contextually in the sentence. Step 5: Based on the sentence structure and meaning, the correct option is "a. he is." Step 6: Insert the correct option into the sentence: "As far as I'm concerned, all he's good at is making up the most improbable excuses anyone has ever heard."