1. As we know, ________ have lived on Earth for ________ years.
A. human; millions B. human; millions of
C. humans; millions D. humans; millions of
2. ---________ is the bus stop?
--- It’s just around the corner.
A. How soon B. How long C. How far D. How much
3. --- Put ________ waste bag into the dustbin, please.
--- It’s not ________ waste bag. It’s my shopping bag.
A. the; a B. a; the C. a; a D.不填; the
4. Mr Black has just arrived, but I didn’t know he _______ until yesterday.
A. was coming B. will come C. comes D. had come