press conference, a government spokesman expressed his great ____________ for thesafety of the three trapped workers.

use your cellphone — we are flying at ____altitude of 10,000 meters and ____average speech is 678km/h.

Now that you have a job ,you should devote yourself to ____you do at work.

I will mark ______ everything you say.It is helpful to the English learners

Is Mr. Smith in the office- No, He＿＿＿＿＿＿to the library.