John _______ so hard on his project that he didn’t notice his mom enter the room.
A. works
B. has worked
C. was working
D. will work
--- Alice’s room is tidy, isn't it?
---Yes. She always _____ her toys after playing with them.
A. looks for
B. puts away
C. sweeps away
D. pays for
---Do you like rock music or light music?
--- _______. I like Beijing Opera.
A. Either
B. None
C. Both
D. Neither
I've ordered some flowers for grandma and they will arrive _____ two hours.
A. in
B. after
C. over
D. for
Mrs. Smith showed the boys how to behave ________ like a gentleman at the dinner table.
A. happily
B. bravely
C. politely
D. differently
Betty kept silent at first _______ soon she joined the other girls, chatting and laughing.
A. so
B. but
C. or
D. because
