More and more people give out "red packets" on WeChat to celebrate festivals．
That's true． I have just received _______ from my friend．（ ）
A．itB．thatC．oneD．them
Good news! China won a gold at PyeongChang Winter Olympic Games．
______，we won six silvers．（ ）
A．MoreoverB．HoweverC．InsteadD．Otherwise
Great changes have taken place in our hometown over the past years．
Yeah． Things ______ different when we were young．（ ）
A．have beenB．areC．will beD．were
Be patient! Give him more time，______ he will find the answer to the question on his own．（ ）
A．butB．orC．andD．so
Mum won't let Simon go out unless he promises to be back ______ 10 o'clock tonight．（ ）
A．tillB．beforeC．asD．since