free now, so he ______ go withus, but he hasn’t decided yet

I hear you have plenty of stamps.—Yes，I have some nice________.Do you want to have a look

mothers can’t come to the meeting because they go to Beijing.

I’m always ________ about what I say because careless remarks are likely to hurt others’ feelings.

I hope there will be ____ cars and ____pollution in the future, thus people will live longer.