Thì Hiện Tại Hoàn Thành Tiếp Diễn — Bài Tập 1

They ___ to build a new bridge.

How long ___ you ___ for the bus? You look frozen.

What ___ you ___ doing?

The dog ___ at the mailman.

They ___ for the bus for over an hour.

The artist ___ on this masterpiece for over a decade.

She ___ less time on social media recently to focus on her studies.

He ___ his guitar every day for the past month.

I ___ a lot of books lately.

He looks tired. He ___ all night.