We must _____________（用一切可能的办法来帮助他们）.

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

Lots of things are made of_____．We must protect_____． A．woods；woods B．wood；wood

We live in a narrowed world______we must be alert, awake to realism.A．thatB．whichC．whereD．

We must find a house _______ to live.A: whichB: thatC: in whichD: in that

We must keep up with the development of the worlds leading enterprises ______we can keep p

We must not touch this switch under any ________.