_____ hard she tries, she can hardly avoid making mistakes in her homework.
It is expected that in the near future, more advances in the Internet technology________by German scientists.
Soon children in the camp had many new friends, ________they shared food, stories and projects.
Take your time—it's not________long distance from here to________ hotel you are going to.
—What qualities does a person need to become an astronaut? —He ________be knowledgeable,independent and creative.
Li Gang was required to apologize ________the people present at the meeting________what he had done.