________ twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.
—What caused the party to be put off? —_________the invitations.
.—How do you find your new classmates? —Most of them are kind, butis good to me as Bruce.
It has been announced that candidatesremain in their seats until all the papers have been collected.
Father made a promiseI passed the exam he would buy me a bike.
Shanghai is most beautiful city and we are excited that the 2010 World Expo has been great success.