—I counted sheep, I drank milk and I tried everything, but nothing helped.
—It seems you _____ too much recently. Try some sleeping pills.
| A．worked | B．work | C．had worked | D．have been working |
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—I counted sheep, I drank milk and I tried everything, but nothing helped.
—It seems you _____ too much recently. Try some sleeping pills.
| A．worked | B．work | C．had worked | D．have been working |
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