Not until he had left his friend _______ how important friendship was for him.
| A．did he realize | B．he realized | C．had he realized | D．he had realized |
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Larry persuaded her that the robot wouldn't harm her or allow her ______.
| A．to be harmed | B．to harm | C．harm | D．to be harming |
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To be honest, I doubt ___ I'm making any difference to these boys' lives at all.
| A．that | B．why | C．what | D．whether |
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After getting my visa I was very excited because I __________ of this day for so long.
A, have dreamed B. dream C. had dreamed D. am dreaming .
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My ambition _____ for a firm that develops computer software when I grow up.
| A．is to work | B．to work | C．working | D．is to be worked |
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Within a moment, its body _______ swiftly by the killer down into the depths of the sea.
| A．was dragging | B．is dragging | C．was dragged | D．dragged |