Wendy hurried to the airport, only ______ the pop singer had left.
Look at the timetable. Hurry up! Flight 4026 ____ off at 18:20.
—Shall I help you, sir? —I appreciate ____ if you do me the favor to pack the luggage.
Helping others is a habit, ___ you can learn even at an early age.
The new group of students are better-behaved than the other group who stayed here___
The children loved their day trip, and they enjoyed the horse ride___