His sister left home in 1998, and _______ever since.
______ we have enough evidence (证据), we can't win the case.
My uncle ______ in Beijing for over 10 years. Now he lives in his hometown in Fuzhou.
At our factory there are a few machines similar to ______ described in this magazine.
–I've studied gardening as a hobby. Could I make some suggestions? –______.
After they _______ stars in their own country, the Beatles _______ the United States.