Mr. Wang is a teacher. He ______ in this school for 20 years.
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A
has worked
B
worked
C
will work
D
works
推荐题目
There are many people downstairs. What do you think ______?
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A
to happen
B
happening
C
is happened
D
has happened
Our teacher told us that light ______ faster than sound.
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A
travels
B
travelled
C
travel
D
will travel
The meeting _ by the time I got there yesterday.
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A
was on
B
has been on
C
had begun
D
has begun