The telephone ______ three times in the last hour, and each time it _____ for my father.
#100969
A
had rung; was
B
has been ringing; is
C
rang; has been
D
has rung; was
推荐题目
The weather forecast says heavy rain____ to continue this week in many areas, raising the risk of more flooding.
#102561
A
is expecting
B
was expected
C
is expected
D
will be expected
Father _____for London on business upon my arrival, so I didn’t see him.
#99289
A
has left
B
left
C
was leaving
D
had left
Being a teacher always encouraging students to think for themselves, I won't tell them answers until they __________ on a math problem for more than an hour.
#101395
A
have worked
B
will have worked
C
will have been working
D
had worked
In the near future, more advances in the robot technology _______ by scientists.
#102017
A
are making
B
are made
C
will make
D
will be made