She devoted herself ________to her research and it earned her a good reputation in her field.
Close the door of fear behind you, and you ______ the door of faith open before you.
Nature is at its most beautiful in spring ______ all kinds of flowers are in blossom, ______ attracts people from all walks of life to take a spring outing.
The students clearly kept informed of what to prepare during the summer holidays will not buy many irrelevant books ______.
“President Xi Jinping’s report,” a smile on his face, he continued, “______ to several hot topics, discusses how to increase peasants’ income.”
Reading a daily newspaper will make you ______ of what is going on in the world.