We should pay great attention to safety in schools because of frequent reports about accidents _______ students got injured or killed while in school.
A.in which B.for which C.which D.that
About 184 million people live in the country,thus ______ it a most populated country in the world.
A.to make B.having made C.makes D.making
I was much impressed by great changes and fast pace of life in Shanghai ______ I came to visit this fantastic city.
A.at the first time B.for the first time C.by the first time D.the first time
Who was it ______ was seated beside Miss Smith,talking excitedly all the time?
A.how B.when C.that D.whom
If you are traveling _______ the customs are really foreign to your own,please do as the Romans do.
A.in which B.what C.when D.where