Question

Below is given sentence in active/passive voice. Out of the four alternative suggested, select one which best expresses the same sentence in passive/active voice:
"The waiter filled the glasses with water."

• A. The glasses filled with water by the waiter.
• B. The glasses were filled with water by the waiter.
• C. The waiter was filled the glasses with water.
• D. The water were filled in the glasses by waiter.

Hint:

Always double-check your subject-verb agreement immediately after moving the object. Even though the original subject (*the waiter*) is singular, the new passive subject (the glasses) is plural, which strictly demands the plural auxiliary verb were. Active: $S + V_2 + O \rightarrow$ Passive: $O_{\text{plural}} + \text{\textbf{were}} + V_3 + \text{by } S$

Answer 1

The Correct Option is B

Step 1: Read the active sentence.
The waiter filled the glasses with water.
Step 2: Break it into parts.
Subject is the waiter, verb is filled (simple past), object is the glasses, and with water is a modifier.
Step 3: Recall the passive rule.
The object becomes the new subject, and we use was or were plus the past participle, ending with by plus the old subject.
Step 4: Choose the auxiliary.
The glasses is plural, so we pick were, giving were filled.
Step 5: Build the sentence.
The glasses were filled with water by the waiter.
Step 6: Reject the others.
Option A lacks the auxiliary, C makes the waiter the one filled, and D wrongly uses were with the uncountable water, so option B is correct.
\[ \boxed{\text{B. The glasses were filled with water by the waiter.}} \]