— Krystal, do you know how tea is produced?
— Yes. When tea leaves are ready, they are picked by hand and then ________ for processing.
A.send B.are sent C.were sent
In difficult times, there are always national heroes ________ step up and bring people hope.
A.whom B.which C.who
Even if we learn something well, we will forget it ________ we use it.
A.while B.until C.unless
With the improvement in transportation, students in some small villages no longer go on ropeways ______ rivers to schools.
A.to cross B.crossing C.crossed
—Tara, what's your favorite ________?
—Orange. Half of my dresses are orange.
A.fruit B.drink C.color
________ January 25, President Xi told the public that nothing matters more than people's safety and health.
A.From B.On C.In
