We all feel it is Jack that _________ for their son’s bad performance at school.
| A．are to blame | B．is to be blamed | C．are to be blamed | D．is to blame |
The incident ________ a chain of events which resulted in the outbreak of World War I.
| A．set out |
| B．set up |
| C．set down |
| D．set off |
That weekend ________up for all the disappointments I'd had.
| A．took |
| B．put |
| C．made |
| D．set |
We found a little boy ________on the ground with both hands ________up with a rope.
| A．lying；tying |
| B．lay；tied |
| C．lying；tied |
| D．laid；tying |
“We can't go out in the weather，” Tom said，________ out of the window.
| A．looking |
| B．to look |
| C．looked |
| D．having looked |
When last ________valuable，those books enjoyed great success.
| A．finding |
| B．found |
| C．being found |
| D．to be found |