The anti-smoking campaign on campus has made quite an impact with the students.()

单项选择题When I was at the grocery store, I realized that the prices of many items had been risen.()

A. at
B. realized
C. many items
D. had been risen.

单项选择题The conversation had been carried on chiefly in French, a language which Mr. Steward was perfectly acquainted.()

A. carried on
B. in French
C. which
D. perfectly