________ hard one may work, one cannot master a foreign language in a month or two.

_______in thought, he didn’t notice that the teacher was right in front of him [ ]

．Soon children in the camp had many new friends, ________ they shared food, stories, and projects.

It’s 8 o’clock. My mother is reading a book. My sister and I _____.

Can you help me ______ my ping-pong ball —Sure . It’s in your drawer .