—How many years has life been on earth?
—______ years, I think.
A. 5 millions B. 5 millions of
C. Million of D. Millions of
Mary can’t help ______ when she sees her father.
A. laugh B. laughing
C. to laugh D. Laughed
Ms Wang the book for five days.
A. have had B. has had
C. have bought D. has bought
—___________ he ______ the windows yet ?
—Yes, he ___________ a few minutes ago.
A .Has; cleaned; cleaned B. Did;clean; has cleaned
C. Was; cleaning; cleaned D. Has; cleaned; clean
—______?
—I am playing the chess with my friends.
A. What do you want
B. What is it like
C.What are you up to
D. What does it look like
—Have you used the new computer ______?
—Yes, I have. I have ______ used it.
A. just,just B . yet, just
C. just, yet D. yet, yet
