I____ my own shortcomings（）
A. recognize
B. control
C. change
D. communicate
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Seldom ______ my boss in such good mood since I came to work in this company（）
A. I saw
B. I have been
C. have I seen
D. do I see
He was speaking so fast__ we could hardly follow him（）
A. what
B. as
C. but
D. that
Our__ sympathy goes out to the victims of the war（）
A. open-armed
B. wholehearted
C. heartfelt
D. thankful
It is an__ treatment and could cure all the COVID-19 sufferers（）
A. useful
B. careful
C. effective
D. active
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