He failed in this exam, ______ proves that he wasn't working hard enough.
A. that
B. it
C. what
D. which
It is recommended that passengers______ smoke during the flight.
A. not
B. need not
C. could not
D. would not
A．Working on an assignment together.B．What they will do that afternoon.C．How they will
A. Working on an assignment together.
B. What they will do that afternoon.
C. How they will spend the weekend.
D. Returning books to the library.
【B5】
A. figure
B. finger
C. figures
D. fingers
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