Passengers must _____________ at the airport an hour before the train leaves.
A: check out
B: check in
C: checking
D: check over
A: check out
B: check in
C: checking
D: check over
举一反三
- You must_________at the airport an hour before your plane leaves. A: check in B: check out C: check with D: check over
- You must check ( )at the airport an hour before your flight takes off.
- Chaire had her luggage an hour before her plane left. A: check B: checking C: to check D: checked
- Please ( ) at least an hour before departure (起飞). A: take in B: take out C: check in D: check out
- To show your ticket and get your seat at the airport is to _________. A: check out B: check off C: check in D: check on