We are all concerned _______ her safety.
A
beconcernedabout:关心,担心。句意:我们大家都担心着她的安全。
Thosewhoknewherladyshipare________thatshewasapersonquitecapableofperformingthisfeat,hadshenotwiselykeptoutoftheway.
Sofarscientistshaveonlyacquired________understandingofthephysicalprocessesthatcauseearthquakes.