The Queqiao satellite（卫星） will form a bridge between controllers on Earth and the far side of the Moon．（ ）
A．contributionB．communication
C．celebrationD．competition
Before stamps，people didn't______for the letters they sent，but for the letters they received．（ ）
A．payB．costC．spendD．take
______American people and British people speak the same language，their cultures are quite different．（ ）
A．SinceB．IfC．AlthoughD．Because
Students_______enjoy the colorful school life if they study at home instead of going to school．（ ）
A．mustn'tB．can'tC．mustD．can
Now all Chinese couples______to have two children．（ ）
A．allowB．allowed
C．are allowedD．were allowed
Water is important to______，so there are many water festivals around the world．（ ）
A．everyoneB．nobodyC．somebodyD．something