During the period of prosperity, people regard the future ______.A．cautiouslyB．in a confid

The trouble－free life of an engine indicates _____.A.the period of time during which no tr

Lisa Perez was always optimistic during the period of her unemployment.A．YB．NC．NG

TFFFTA. In case of any clarificationsB. During the three months’ probation period with o

In certain area, during certain period, the development of communication could ______ the

The American dream is most plausible（似乎可信的)during the periods of productivity and wea

During the period of economic recession daily ne