In case of emergency, whether knowing how to applyfirst aid or not really ________ in matters concerning wounds like swollenwrists, broken arms, burns, cuts, and so on.

The flood has caused a lot of damage to that area and the figures of the missing________shortly.

The population of China is _______ thanthat of America.

My parents ___ me to keep healthy. —You can do it if you exercise every day.

－Shall we go hiking this Sunday －Sorry, I _______. I’ll have to take a piano lesson.