Her sister is a nurse and her job is to care for sick people.

Do you think necessary to do a bird count ?Yes , we must count them at least once a year

Though we are not walking slowly, I still think that it won’t be _________ he _________up with us.

She said she had some trouble ___________ her homework.

.______ pressure the U.S. government put on the Chinese government, China would stick to its own policy of exchange rate.