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.

Managing money has long been a headache for students mostly supported by their family, who find it ________ to deal with their finances.

Nice to meet you, Mike. ____________——Everything is OK. Thanks.

________ with many other people, teachers have a relatively stable income.

The singer is always very ______ to the reaction of the audience when she gives a performance.