How long does it take you to get to school?一_________

The supermarket is crowded（拥挤的）. There are ___________ people there.—Yeah, and the things there are always ______________ expensive（贵的）.

Miss Green is the only person __________ can help you with your English.

Gary: I can’t find my pen. Nina: Is the one on Jack’s desk ? Gary: Yes, Thank you.

According to the research, the higher the standard of living, the ___________.