Selected MCQ

Current Question
When the alarm sounds, leave the building ___ once.
  • A. at
  • B. in
  • C. on
  • D. by
Correct Answer: A
Explanation:
The idiom is "at once," meaning "immediately."
Related Question 1
Leave the package ___ reception.
  • A. in
  • B. on
  • C. at
  • D. under
Correct Answer: C
Explanation:
We use at for a specific service point.
Related Question 2
Our train leaves ___ the afternoon.
  • A. during
  • B. on
  • C. in
  • D. at
Correct Answer: C
Explanation:
We use "in" with broad time periods, such as the afternoon.
Related Question 3
The alarm went off ___ midnight.
  • A. in
  • B. at
  • C. on
  • D. by
Correct Answer: B
Explanation:
We use at with midnight.