Experts have found that the disease will lead to a greater increase in the number of sufferers unless ________ seriously when the symptom first appears.
A. treated B. to be treated
C. being treated D. be treated
To improve their oral English, everyone in the class is supposed to ________ actively in these discussions.
A. participate B. attend C. enter D. take
— Jack, Jane seems unhappy?
— Don’t worry, a funny story will ________ her.
A. amuse B. meet C. tease D. fool
The moment their idol took the floor, the excited fans ________ thunderous applause.
A. ran into B. burst into
C. came into D. turned into
________, you'll never be able to persuade him.
A. However hard may you try B. Try however hard you may
C. Hard as you may try D. Try hard as you may
Those old soldiers never laugh or smile and try to appear very serious ________ what they are ________ is very funny.
A. as though; making fun of
B. even if; looking on
C. even though; talking about
D. in case; laughing at