I can’t give you an answer right now I’d like more time to consider my decision

Recently the Ministry of Environmental Protection issued a circular saying that China may adopt flexible working hours and stop school classes_____the highest air pollution warnings.

You should have prepared your speech for the meeting，Mrs Smith.—Yes，I know.But how could I________the meeting date fixed so soon

I didn’t know which shirt was better, the black one orthe red one, so I took them .

Is this the reason ___ she gave for not finishing her homework yesterday?[ ]