As a young singer, she tries a completely new         to the classic song, only to earn a lot of criticism.

Parts of the cave have been badly affected by rain and           to the air.

I have to reschedule the appointment with you since there is a ________ in my plan.

—Who did you stay with yesterday? I couldn’t find you anywhere.— ___________. 

T0 make members 0f a team performbetter,the trainer first of all has to know their_______and weaknesses。