Question

Choose the correct modal verb and fill in the blanks: Mary ______ been to the supermarket; the cupboards are all full.

• A. Can
• B. Have to
• C. Have
• D. Must have

Hint:

Use \textbf{must have} to express a strong logical conclusion about something that happened in the past.

Answer 1

The Correct Option is D

Step 1: Read the sentence carefully. “Mary \underline{\hspace{2cm}} been to the supermarket; the cupboards are all full.”
Step 2: The phrase “the cupboards are all full” gives strong evidence about a past action.
Step 3: When we make a logical deduction or strong assumption about a past action, we use the modal structure must have + past participle.
Step 4: The past participle of “go” is “been”, so the correct form is must have been.
Step 5: Therefore, the correct sentence is: “Mary must have been to the supermarket; the cupboards are all full.”