If you ________ Beijing Duck，I'd like to treat you to a meal at a famous duck restaurant．
#104939
A
didn't try
B
don't try
C
haven't tried
D
hadn't tried
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