Can you tell me how ________ the problem ?
| A．did solve | B．to solve | C．solving | D．solved |
This______story made us so _______
A,boring ,boring B bored,bored C boring bored D. bored,boring
When you visit Italy ,you can go to _________ and take photos there .
| A．Tower Bridge | B．Statue of Liberty |
| C．Leaning Tower of Pisa | D．The Great Wall |
The fans were so excited that they _______ their hands .
| A．could’t stop clapping | B．couldn’t stop to clap |
| C．can’t stop clapping | D．can’t stop to clap |
-----I called you last night, but there was no answer.
------I’m sorry, I _______dinner with my friends outside.
| A．have | B．had | C．was having | D．have had |