I want a ticket to Shanghai this afternoon.—OK. Could you please _______me your ID card

Alice, you look puzzled, Have you understood it?—Yes．I _____another problem just now

’t want to eat it unless he’s really hungry, in ______ case he’ll eatalmost anything

She has already tried her best. Please don’t be too ____about her job.

___ help, one says "Thankyou" while when _____ help, one asks "Can I help you"