.There was a terrible noise _______the sudden burst of light
.I’ll go to America to strengthen my English _______it isn’t too expensive.
.These achievements_______ without the contribution of Qian Xuesen, a key leader of the New China's nuclear, missile and so on.
.—How about going out for a picnic on Sunday morning? —Hmm.___.The weather is very good these days.
.Greatly frightened by the terrible scene, _______.
.On the coast _______ with an old temple _______ back to Ming Dynasty.