A.iron
B.to iron
C.ironing
D.being ironed
A、on the march, on strike
B、on march, on strike
C、on the march, on the strike
D、on the strike, on march
Dawson was dissatisfied with soft iron pitons because ______.
A.they were too soft to bear the climber's weight
B.they were the only pitons he could afford to buy
C.they coul not last long
D.they were made of iron
A.rates
B.densities
C.proportions
D.thicknesses
A.limit
B.raise
C.increase
D.reduction
A.silence
B.balance
C.difference
D.weakness
The coal-miners agreed to______the strike if the management would satisfy then-demands.
A.call up
B.call for
C.call off
D.call forth
A) illustrations
B) performances
C) expositions
D)exhibits