Chia động từ thì Hiện tại tiếp diễn

Chia động từ thì Hiện tại tiếp diễn:
Andrew has just started evening classes. He ................. German *
are learning
is learning
am learning
learning
The workers ................................a new house right now. *
are building
. am building
is building
build
Tom ............................. two poems at the moment? *
are writing
are writeing
is writeing
is writing
He .......................... his pictures at the moment *
isn’t paint
isn’t painting
aren’t painting
don’t painting
We ...............................the herbs in the garden at present. *
don’t plant
doesn’t plant
isn't planting
aren't planting