1 . Although the test ________ look like a simple one, great care is needed.
| A．may | B．must | C．should | D．need |
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2 . —Daddy, how much do you earn an hour?
—If you ______ know, $20 an hour.
—If you ______ know, $20 an hour.
| A．may | B．must | C．can | D．should |
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