Scientists are trying their best to_______ ways to treat the terrible disease caused by Ebola(埃博拉）．
A. come up with B. look forward to
C. talk about D. give up
—The air pollution is terrible.
— It will be worse ________ we take action to protect the environment.
A. if B. unless C. until D. When
— What do you think of our performance on the New Year’s Evening party?
— Perfect! I don’t think I can see a ________ one.
A. worse B. good C. better D. bad
The Asian Cup is coming! All the matches are worth ________.
A．watch B．watching
C．to watch D．Watched
—- MH Flight 370 has been lost for nearly three months.
— What a pity! I wonder___________________.
A. that there will be the latest news about it.
B. where is it now
C. where can we find it
D. what has happened to it
There are no words to describe______ I miss my hometown.
A.how much B.how many
C.how soon D.how long
