Mrs Zhang _______ the test papers and asked us to finish them carefully.

There is _____ “u” and _____ “r” in the word “your”.

The U. S．declares ithas the best medical technology in the world，but quite alot of Americans have no ____to health care service．

Now, people regard drinking tea ________ a culture more than a habit.

If shethat Marywould come to see her, she would never have gone to the party.