Tom has difficulty Chinese, so he often asks me advice.

It was the third time that she ______ to this mountain village to see the children

I’ve _____ all my papers but I still can’t find the contract.

Thank God we’ve finally cleared up some problems. Let’s ______, shall we?——All right. See you tomorrow.

Emergency line operators must always ________ calm and make sure that they get all the information they need to send help.