John is very ____    ——if he promises to do something he’ll do it . 

I do think Tom's conduct that evening was, to say ________， strange.

Miss Joanna,________ with the ______ result of the experiment, sat on the chair, smiling.

While there are clear signs of a _______ recovery in the global economy, the country still faces a very difficult situation.

He arrived at last, ______________.