When this new kind of virus broke out at first in Mexico, no one had the least idea that it would _______ so rapidly throughout the world.
A. export B. spread C. expand D. deliver
---Is the new job a real challenge for him?
---Well, _______ difficulties he meets，I believe he will never lose heart.
A. however B. whenever C. whatever D. Whichever
“___________ race” means that two people form a group with their on-leg tied and they will walk for contest with three legs.
A. three-legging B. three-legged
C. three-legs D. three-leg
Listening to loud music at rock concerts _________ caused hearing loss in some teenagers.
A. is B. are C. has D. Was
If the tickets to the match are not available, please give me a call _______.
A. in general B. in brief
C. in advance D. in particular
An Internet-based _______ aimed at passing same-sex marriage is getting a little help today from Bruce Springsteen, a famous American singer.
A. statement B. function C. admission D. campaign
