Studies show that people are more_________to suffer from back problems if they always sit before computer screens for long hours.
| A．likely | B．possible | C．probable | D．sure |
---Did the naughty boy break the glass by chance?
---No, ________.
| A．of course | B．on purpose | C．by hand | D．for pleasure |
Iraq has _______ too many wars since 1990s, making his people _______a lot.
| A．got through; suffer from | B．looked through; suffering |
| C．gone through; suffer | D．passed through; suffered |
Jim didn’t realize his little sister was crying _____ what he had said.
| A．because | B．because of | C．as | D．since |
The number of the teacher invited _____ twelve, but a number of them ___ late for different reasons.
| A．were; was | B．was; was | C．was; were | D．were; were |
Young people spend most of their time _________, for they don’t want to stay at home all day.
| A．outdoor | B．outdoors | C．indoor | D．indoors |