We must ______unnecessary expense.A、eliminateB、cancelC、abolish

We must _____________（用一切可能的办法来帮助他们）.

You ought to know better than ______ yourself in unnecessary expense.A．to involveB．involve

Under no ______ should we seek temporary economic development at the expense of the enviro

I think it unnecessary to go back there, _____we have visited these places.Aso thatBin

Nowadays, the athletes expenses are paid for______.IN ANCIENT GREECE ATHLETIC FESTIVALS WE

Our expenses are too high, we must cut them______somehow.A．downB．inC．upD．out