【单选题】
John always ______________ elder people politely.
①
treat
②
treated
③
treats
④
treating
【单选题】
The boy and his mother were ____ in the burning house.
①
involved
②
trapped
③
enclosed
④
surrounded
【单选题】
It is_________ to memorize something you dont understand.
①
easy
②
difficult
③
beautiful
④
wonderful
【单选题】
The boy was seen ______ the piano at 9 yesterday evening.
①
to play
②
play
③
playing
④
played
【单选题】
17.____, the subject was always in my mind.
①
Walking or sleeping
②
Walking or slept
③
Having walked or slept
④
To walk and sleep
【单选题】
We shouldn’t always _______ our parents.
①
A.keep on
②
B.depend on
③
C.put on
④
D.go on