there ------- two cups of milk on the desk.怎么填?

there are two bears o-- there there are some 还是there are two there ( ) two ( ) in the room every two to there months The atomic mass of copper is 63.55 amu.There are onlytwo isotopes of copper,63Cu with a mass of 62.93 amu and65Cu with a mass of 64.93 amu.What is the percentageabundance of each of these two isotopes? There are two hundred ducks.对 two hundred 提问 there are two computers in the room.对（two)提问 There are two trees behind my house .对two提问 There are two dishes on the table.对two提问. There are two dogs in the pictune(two提问) There are two paths in the forest.对two提问? there are two apples in my hand对two提问 there are two shirts on the wall对two提问 there are two ways to clone sheep 用two提问 Cu Cu there are two kinds of memory there were two more dogs .究竟几只狗,