You shouldn’t wait here, _____ you can go and ask Jim why.[ ]

I want to buy a hat, but there are so many kinds that I can’t decide to take.

I find _______ necessary to take some warm and dry clothes with us during the walk.

What are you going to do next weekend?—I _____ yet. Do you have any good ideas?

is the weather in Beijing now? ——It’s ____________.