Jim couldn’t understand how the machine worked until his friends____ how to use it.
#61364
A
promised
B
explained
C
thought
D
heard
推荐题目
I used to ______ in the morning, but now I’m used to _____ before going to bed. 
#59223
A
read; read
B
reading; read
C
read, reading
D
reading, reading
I think I’m _____ unhealthy.   
#63703
A
kindof
B
alittle
C
kindsof
D
prettyvery.
Thank you very much for___________ your birthday party.
#55005
A
invite me to
B
inviting me to
C
inviting me for
D
invite me at
— Sorry, I’m late. Has the film begun?— It doesn’t matter. The film _________ for several minutes.
#53815
A
has just begun
B
has just been over
C
has just been on
D
has just ended