问题
Scientists also have no idea how long it will be before all wild animals in the cages _____.
A:should be set free
B:will be set free
C:are set free
D:would be set free ;
B:will be set free
C:are set free
D:would be set free ;
正确答案是：
同类题型
194. The old farmer went to the_____nearbyto sell his homemade basket every morning.
We can’t afford to make any mistakes. To us, __________.
by a greater demand forvegetables,farmers have built more green houses.
Hey,man. You can’t cross the street now. You have to wait ___the traffic lights turn green.
Remember the first time we met, Jim? — Of course I doYou ＿＿ in the library