Wars are disasters. A large number of people will lose their homes if a war ________.
| A．breaks out | B．is broken out |
| C．breaks down | D．is broken down |
Our classroom _____ every day, so it’s very clean.
| A．cleans | B．is cleaning | C．is cleaned | D．cleaned |
They ______ Hong Kong twice.
| A．have gone to | B．have been to | C．have been in | D．have gone in |
______adultsbegantolearnEnglishinthissmalltown.
| A．Thousand of | B．Thousands of | C．Thousand from | D．Thousands from |
Canyoutellme____________?
| A．howmuchdoesitcost | B．howmuchitis |
| C．howmuchitcosts | D．BothBandC |
Everyoneinourclass_____.
| A．enjoystoswim | B．enjoytoswim | C．enjoysswimming | D．enjoyswimming |