A、 what
B、 why
C、 which
D、 that
答案:D
A、 what
B、 why
C、 which
D、 that
答案:D
A. study
B. discuss
C. record
D. remember
A. bottom
B. basis
C. root
D. stem
A. having
B. buying
C. giving
D. receiving
A. violent
B. volunteer
C. violation
D. vulnerary
A. Bicycling is enjoyable exercise for people.
B. Driving cars is healthier than riding bikes.
C. Riding a bike pollutes your neighborhood.
D. Common bikes are welcomed by all airlines.
E. according to the passage?
A. wrapped
B. rested
C. gathered
D. packed
A. almost
B. even
C. nearly
D. hardly
A. before
B. when
C. while
D. as
A. fact
B. contrast
C. addition
D. consequence
A. type
B. range
C. variety
D. sort