-I’m sorry to keep you waiting．

-Oh，not at all．I_______ here for only a few minutes．

A．was           B．will            C．have been              D．am

Work hard，and you_______ well in your English study．

A．are         B．will be          C．do       D．will do

-Where is Frank now?

-He__________ in the reading room．

A．read          B．reading            C．reads        D．is reading

David often_______ to the movies on weekends．He likes action movies．

A．will go       B．goes              C．went               D．was going

--Why is the classroom so dirty?

--Sorry，sir．It_______ yesterday．We forgot to do it．

A．doesn't clean                             B．didn't clean

C．isn't cleaned                            D．wasn't cleaned