He said he would come to attend the lecture if he ___________ time.

There was interview with Yao Ming on CCTV-5 yesterday evening. But it was a pity that I missed beginning.

It was not until the accident happened _______ aware of my own foolishness.

Would you like ________ Emily and Carol—Of course. I hear they are twins and play the piano well.

－ Do you want another drink－ __________.