Since          to the world, the dance “Gangnam Style” has gained greart great popularity.

The lazy boy is indeed unusual: he knows nothing, ______ does he seek to know.

There, in the kitchen, _______ I had never seen before．

Mary enjoys home-made food, so she seldom, ________, eats out.

So absorbed _____ in the experiment that he didn’t even notice it was already over 12 o’clock.

No sooner ______ down on bed ______ the telephone rang.

_____who had arrested him three times for drug-taking.

Only ______ as an interpreter ______ how important it was to grasp English.

She must be looking forward to as much to his return as he himself is to _______ her.

When        for his view about his teaching job, Philip said he found it very interesting and rewarding.