.I am thankful to my next-door neighbor Uncle Li,who always lends me___hand when I am in_____trouble.
Scientist are not sure about the ___________ of water on the Mars.
Don’t push me! __________ you know the truth right away?
. He __________ full marks, but he was so careless as to make a spelling mistake.
Then I have learned there are a lot of troubles in our lives, but the problem is __________ they control you or you control them.
--- Mr White is strongly against the plan. --- __________ ? It was he who suggested it.