I went to __________ supermarket to buy ___________ birthday gift for my aunt yesterday．（　　）

A．an，aB．a，aC．the，/D．/，the

Jessica used to be a manager in a company，but she gave up ___________ job when she became a mother．（　　）

A．sheB．hersC．herD．herself

Two months ago，China tested its ___________ aircraft carrier （航空母舰） built completely on its own．（　　）

A．oneB．firstC．the oneD．the first

Daniel has tried to lose ___________ by eating less recently，but two kilos has been put on instead．（　　）

A．weightB．weightsC．heightD．heights

It's believed that playing computer games too much does ___________ harm than good．（　　）

A．manyB．muchC．moreD．most