.Mr. Richard hasn’t got any time to play golf these days,because he is ______in the research of bird language.
#104550
A
devoted
B
concentrated
C
buried
D
spared
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Luckily good things _________ here to save local wildlife.
#102513
A
are doing
B
are being done
C
had been done
D
will do
At the end of the meeting, it was announced that an agreement ______. 
#103556
A
has been reached
B
had been reached
C
has reached
D
had reached
What’s the time?  My watch _______.
#101221
A
is being repaired
B
is to repair
C
has been repaired
D
has repaired