He sat quietly in the room,listening to the rain____the window.
Because the shop_____, all the T-shirts are sold at half price.
Leaving behind family members, these farmers are strangers to the cities ______ they work.
Last week, only two people came to look at the house, _______ wanted to buy it.
That’s the new machine ________ parts are too small to be seen.()
Is this research center _____you saw the modern equipment last year?