It’s easy to make friends, but it’s difficult to keep the ________ longer.
| A．days | B．friendship | C．classmates | D．life |
He always helps others without ________ twice.
| A．to think | B．think | C．thinking | D．thinks |
The tall building was _____ in 1989.
| A．setting up | B．set up |
| C．set | D．to set |
This room is ____ small ____ hold these people.
| A．so, to | B．too, that |
| C．too, to | D．so, that |
Nick has problems _______ .He has a sore leg.
| A．walk | B．walked | C．walking | D．to walk |
I saw many people _______ on the beach every sunny afternoon..
A lie B. lying C. to lie D. lies