I ________ my cellphone last night. Now the battery is running out.

Kids talk frequently about what they can do, __________ many adults do the opposite, tending to talk about what they can’t and why

He is so busy with the research _____ he has no time left for any other activity.

She felt rather _______that she should drive the car at such a___________ speed.

Heroes are those who，givena choice between doing the right thing at great personal cost or the wrongthing for great personal benefit，＿＿＿＿theformer.