I’m mad at what Jack said yesterday —________ ! He was just making a joke

elooked up, he suddenly found himself bya group of teenagers, looked at him anxiously.

Was it because of his laziness_______ he didn’t do the experiment successfully?- No, it was because of his carelessness.

Some researchers believe that there is no doubt______acure for AIDS will be found

Tourism is important ______ Oxford and Grenoble, and they are both close ______ some of the most beautiful countryside in the region