It may rain,the clouds are＿． A.built on B.building up C.to b

It may rain,the clouds are＿． A.built on B.building up C.to b See the clouds!It() rain A.will B.is going to C.must D.may Look at the clouds,It ( )rain.A.will B.is going to C.must D. look at the clouds.it()soon.A.is raining B.is to rain C.will look at the clouds in the sky.It seems＿＿.A.rain B.raining C. 【单项选择】The building（）in 1999.A.built B.is built C.was built D Look at the clouds.It___that it is going to rain.A.seems B.l Look at the black clouds,it( )rain.A.will B.is going to Look at these clouds,___.A.It'll rain B.It's going to rain Look at these clouds.________. a.it'll rain b.it's going to There are a lot of clouds in the sky. it's going to rain.(…… Look at those clouds!It( )rain.A.was going to B.is going to