1.What's the weather like today?

1.What's the weather like today?
---- Tt's fine.回答为什么不用 The weather is fine.
2.The number of workers in this factory_is_1,200.Anumber of them _are_ from the countryside.
为什么分别是用is 和are
3.--Look!What can you see over there?
----There are many students__playing__basketball on the playground.
为什么用playing?
4.___Playing___ computer games too much is bad for your eyes.
为什么用playing?
5.I lay on the beach,__listening___ to music.
为什么用listening?
6.Which of the following is true?
A.I don't know what is he looking for.
B.how much does each thing cost inside?
C.Iknow how far is it from your home to school.
D.It took a long time finishing the work.
选哪个?分别错在哪?