He has made progress in his English, _______ makes his father very happy.

It is reported that 39 Vietnamese died in October __________ illegal immigration (移民) into the UK.

Why are you crying Today is your birthday!—_______. I am so excited with so many friends surrounding me.

Further space exploration has been _______with the rapid development of China’s science and technology.

The science of computer, _____rapid progress has been made in recent years, is the most important of all science.