The speaker _____ several other subjects in the course of his talk but mostly kept himself to the main topic.
#81809
A
held on
B
worked out
C
touched on
D
kept out of
推荐题目
The computer system _____ suddenly while he was playing computer games.
#68489
A
broke down
B
broke out
C
broke up
D
broke in
 Any student _____ will be disqualified from the exam. 
#81935
A
catching cheating
B
catching to cheat
C
caught cheating
D
caught to cheat
It’s hot here. Why not ________your coat?
#66301
A
put on
B
dress up
C
try on
D
take off