This is the most serious and worst situation ___ I have ever experienced as a fan of the NBA.A. which B. thatC. when D. where
Yang Liwei is regarded as our national hero, who is_________.
The number of people who______ English as a foreign language_______ more than 750 million.
——Is this the first time you _______ Qingdao?—— No, but the first time I _______ here, the city wasn’t so beautiful.
Watching TV is ______ a kind of relaxation, and it also_______ our knowledge.
The growing speed of a plant is influenced by a number of factors, _______ are beyond our control.