---Did you notice someone enter the classroom just now?
---Sorry, I didn’t. I _____ my lessons at that time.
A. am doing B. did
C. doD. was doing
_____ this cake, you’ll need 2 eggs, 175g sugar and 175g flour.
A. Having made B. Make
C. To make D. Making
This is my book. _____ is over near the window.
A. He B. Your
C. HisD. My
He will arrive in Shanghai _____ three hours. Let’s go to meet him.
A. in B. on
C. at D. of
----How did you get the watch, from a shop or by phone?
----_____. I like shopping on the Internet.
A. None B. Both
C. All D. Neither
Everyone believes him because he is _____ honest boy.
A. a B. an C. the D. 不填
