Question

51. The watchman ______ all the laboratories every day.

a. lock b. is locking c. locked d. was locking​

Answer 1

Answer:

its easy

Explanation:

the option number c s the correct answer.

Answer 2

The watchman locked all the laboratories every day.

• The tense is the change of form in a verb to express the time of an action.
• Simple past tense is used to talk about a completed action in a time before now.
• Therefore, in the given simple past tense is used.
• Hence, the correct sentence is "The watchman locked all the laboratories every day."