________ the global economy is showing signs of recovery, many developing countries are still suffering.

At least 300 million people are using QQ by Ma Huateng to chat online.

ave noodles for supper every day. I like noodles, but I want to try something different this afternoon. — ______

Is it cheaper and enjoyable to travel by train than by plane-Yes, I think so.

下列各句中，表达得体的一句是