高中英语现在完成进行时试题

—I beg your pardon?
—Your mind must have been  when I was speaking, wasn’t it?

A．wondering	B．wandering
C．pretending	D．Extending

I have to see the doctor because I ________ a lot lately.

A．have been coughing	B．had coughed
C．coughed	D．cough

-- I have got a headache.
-- No wonder. You_________ on the math exercises too long.

A．work

B．are working

C．have been working

D．worked