Mike and I to the zoo and some tigers there yesterday.

____ you understand the rule, you willhave no further difficulty.

Mymother is Englishteacher in No. 2 Middle School.

In 2003, eBay, ______ famous website where people buy and sell ______ things, said that 70% of their problems were with people who cheated customers.

MrSmith used to smoke __________ but he has given it up