charge
| A．machine | B．stomach | C．achievement | D．technology |
Ladies and gentlemen, please fasten your seat belts. The plane________.
| A．takes off | B．is taking off | C．has taken off | D．took off |
Look at the timetable. Hurry up! Flight 4026 ____ off at 18:20.
| A．will be taken | B．took | C．takes | D．has taken |
—Shall I help you, sir?
—I appreciate ____ if you do me the favor to pack the luggage.
| A．/ | B．that | C．you | D．it |
Helping others is a habit, ___ you can learn even at an early age.
| A．it | B．that | C．one | D．those |
The new group of students are better-behaved than the other group who stayed here___
| A．early | B．earlier | C．earliest | D．the earliest |