Mary is __ a lot today I think she has a cold. a vacuuming b. littering c. sneezing d. forgetting

## Step 1<br />The problem presents a sentence with a blank, and the task is to choose the correct word that fits the context of the sentence. The sentence is "Mary is __ a lot today I think she has a cold."<br /><br />## Step 2<br />The sentence is about Mary, who is doing something a lot today, and the speaker thinks she has a cold. The options are: a. vacuuming, b. littering, c. sneezing, d. forgetting.<br /><br />## Step 3<br />We need to choose the word that best fits the context of the sentence. The sentence is about Mary, who is doing something a lot today, and the speaker thinks she has a cold.<br /><br />## Step 4<br />The word 'neezing' is the most appropriate choice because it is a common symptom of a cold. The other options, 'vacuuming', 'littering', and 'forgetting', do not fit the context of the sentence.