—Is everything _____ we need to do _______?
—Yes. You needn’t worry about it.
A. which; has done B. which; doing
C. that; has done D. that; done
—Is everything _____ we need to do _______?
—Yes. You needn’t worry about it.
A. which; has done B. which; doing
C. that; has done D. that; done
D