Was it in 1969 __________ the American astronaut succeeded __________ landing on the moon?
This study shows that ______language may differ,the order in which young kids learn the parts of speech appears to be the same across different languages.
The woman will think of her own child ______ she ______ these little children.
But for your help,I ________ the place.
The teacher stressed again that the students should not _____ any important details while retelling the story.
______ mountains of homework,students today are busy with all kinds of activities.