Robin ________ volleyball quite well, but he hasn’t played it since he entered senior high school.
#103006
A
is playing
B
had played
C
used to play
D
plays
推荐题目
I ________ for Beijing next Saturday. Do you know when the earliest plane ________ on  Saturday?
#99485
A
am leaving; takes off
B
Leave; takes off
C
leave; is taking off
D
am leaving; is taking off
Research _____ that over 81% of teachers are dissatisfied with their salary.
#100827
A
contrasts
B
indicates
C
highlight
D
reveal
With the help of high technology, many new substances(物质)______in the past years.
#102927
A
discovered
B
have discovered
C
had been discovered
D
have been discovered