The mother opened the door quietly so as not to       the sleeping baby.

Without my glasses, I couldn’t       whether that figure on the blackboard was a three or an eight.

Try to_______ at least an hour every day for learning English.

 The Minister of France stresses that the quality of production，________ the quantity of production, is the key to improving the nation's economy.

I’m planning to hold a party in the open air,but I can make no guarantees because it 　　the weather.