--He must have received a good education in his childhood, ________ he?
--________, he is polite and well-behaved and acts like a gentleman.
| A．didn’t; Yes | B．has; Yes | C．has; No | D．didn’t; No |
— What’s the matter?
— The shoes don’t fit properly. They＿＿＿＿my feet.
| A．are hurting | B．will hurt | C．have hurt | D．are hurt |
In this experiment, they are woken up several times during the night, and asked to report what they＿＿.
| A．had just been dreaming | B．are just dreaming |
| C．have just been dreaming | D．had just dreamt |
When he was alive, the old scientist used to say that knowledge ＿＿from practice and he gained his experience by doing a lot of practical work.
| A．was coming | B．had come | C．comes | D．would come |
He ＿＿articles for our wall-newspaper these three years, and he ＿＿about forty articles.
| A．has been writing； has written | B．has been writing； wrote |
| C．is writing； has been writing | D．has written； has written |
The children ＿＿very quiet；I wonder what they ＿＿up to.
| A．were； are being | B．are being；are | C．are；do | D．are being；do |