.I don’t think that the sentence need ______again.

Why don’t you do some shopping in the second-hand store ? —— Well, the goods there are _____, but _____.

She kept _________ hard at her physics and finally caught up with us.

173. I can hardly imagine Peter _______across the Atlantic Ocean in five days.

The strike may hold ________ production ofcars for several months, ________ a great loss．