Boys, don’t lose____ in playing Angry Birds. It is bad for your eyes to play computer games for a long time

______has Mr. White been a member of Greener China since he ______ to China?[ ]

There isn’twith my TV set.

Mum, I can’t find my football.—Hurry up! Your father ______ for us.

Lily is coming by ________plane tomorrow. — Let’s go to ________ airport to meet her.