_________, some famous scientists have the questions of being both careful and careless.

Our school put off ____ ___ the sports meeting because of the bad weather.

－There is _____________ with my fridge.－I’m afraid you have to ask someone to check it.

I was very busy that day Otherwise I_________in the discussion

What’s your plan for the future—I hope to get a job in the local newspaper at firstand ______ work for China Daily