Getting your students ________ in classroom activities is vitally important.
| A．trapped | B．devoted |
| C．stuck | D．involved |
This is not an economical way to get more water; ____, it is very expensive.
| A．on the contrary | B．on the other hand | C．in short | D．in all |
You should be ___________ confronting your roommates over any problems, especially if you have just met. Remember, be polite but firm.
| A．curious about | B．cautious about | C．adapt to | D．accustomed to |
A pilot climbed into the jet and off he ______, leaving the ground far behind.
| A．went | B．drove | C．flew | D．took |
Managing money has long been a headache for students mostly supported by their family, who find it ________ to deal with their finances.
| A．challenging | B．rewarding | C．demanding | D．exciting |
The most delicious cake in the world____ by mom. Please wait an hour to enjoy it.
| A．makes | B．is made | C．is being made | D．is making |