David didn’t give up ______ he had failed in the experiment four times．
A. if B. while C. though D.since
—Look! That teacher is explaining something to her students again and again!
—_______teacher she is!
A. How patient B. What patient C. How a patient D. What a patient
Lucy liked all the dresses there, but she took the ______one to save as much money as
possible for Project Hope.
A. cheaper B. more expensive C. cheapest D. most expensive
Mandeep can go to school now. UNICEF has paid for her ______．
A. education B.vacation C.competition D. invention
—Here are three books on history. Which one would you like to borrow?
—______. You see, I’m interested in geography these days.
A. All B. None C. Both D. Each
The second Sunday of May is ______ Mother’s Day. It’s ______special day for children
to show their love for their mothers.
A. a；the B. the；a C. 不填；a D. 不填；the
