The American people will never forget the 9.11 event and the psychological trauma __________ caused to hundreds of thousands of common households.
We'd better take umbrellas—I'm sure it____when we arrive in London; it's always wet there at this time of year.
—Hi, Betty, are you free at present? I have to ask you for a favor. —_____.With pleasure
Steps must be taken _________ this kind of disaster will never happen again.
It is necessary for children to exchange ideas with parents from time to time so that the generation gap between parents and children can be _________.
“Mary looks hot and dry” “So _________ you if you had so high a fever.”