How many people learn English as a second language?— ________, there are more than 375 million people[ ]

Many of us Chinese people are ________with the beauty of Hangzhou and Suzhou.

It is rather that we still do not know how many species there are in the world today.

He asked me I would like to see a film with him. [ ]

A modern city has been built in______ was a small fishingvillage.