Susan will not arrive at the airport on time _______ she hurries up.( )
A: once
B: learn
C: unless
D: if
A: once
B: learn
C: unless
D: if
举一反三
- Susan will not arrive at the airport on time _______ she hurries up.
- The bus driver should arrive at the airport right on time when picking up guests.
- By the time you arrive at the airport in an hour, the plane________.
- Generally speaking, you should arrive at the airport with plenty of time ________.
- She once tried _learn french.