A、a
B、an
C、the
D、/
第1题:
A、are…being
B、is…being
C、has…been
D、have…been
第2题:
A. Half-duplex Ethernet operates in a shared collision domain.
B. Full-duplex Ethernet has a lower effective throughput.
C. Half-duplex Ethernet operates in a private collision domain.
D. Full-duplex Ethernet allows two-way communication.
E. Half-duplex Ethernet operates in a private broadcast domain.
第3题:
Mary: Oh, Lucy! Something terrible happened on me. I fell off my bike and hurt my right leg.
Lucy: Did you?______. How did it happen?
第4题:
He is talking so much about America as if he ____ there.
A、had been
B、has been
C、was
D、been
第5题:
21. This is ________ room. The twin sisters like it very much.
A. Lucy's and Lily's
B. Lucy's and Lily
C. Lucy and Lily's
D. Lucy and Lily
第6题:
Lucy 最终嫁给的是Edward?