I feel so excited！At this time tomorrow morning I ________ to Shanghai.(2012·辽宁)
A．will be flying B．will fly
C．have been flying D．have flown
I have to see the doctor because I ________ a lot lately.
A．have been coughing B．had coughed
C．coughed D．cough
—Why，Jack，you look so tired!
—Well，I ________ the house and I must finish the work tomorrow.
A．was painting B．will be painting
C．have painted D．have been painting
Tom ________ in the library every night over the last three months.(2011·北京)
A．works B．worked
C．has been working D．had been working
In order to find the missing child，villagers ________ all they can over the past five hours.(2012·安徽)
A．did B．do
C．had done D．have been doing
—Hi, Susan, where were you at lunch time？I ________ a seat for you in the coffee shop.
—Oh, sorry to miss you.My political science class ran longer than usual.
A．am saving B．was saving
C．had saved D．have saved
