Why do you call him Mr．Knowledgeable?— Because he knows almost everythingwe want to know．

Why did you leave without a word of warning to John? ——But what_____________otherwise? He never listens to me.

The terrorists（恐怖分子）in Xinjiang ______ last month.

did you go to the cinema to see 3D Titannic last night? —- No, I ________ go to the cinema . The tickets are too expensive

The box is ____ heavy for me to carry. Can you help me? ——- Certainly.