This problem may lead to more serious ones if ________ unsolved.
---- Did you come to the museum by bike yesterday? ---- No. Two meters of snow fell during the night. As a result, several main roads __ .
----Jack, can you make a sentence to ________ the meaning of the new phrase? ----Well…
My sister met him at the Grand Theatre yesterday afternoon, so he _______ your lecture.
China’s new food law provides for a food recall system _______ producers have to stop production if their food isn’t up to standards.
Can you imagine that rats eat 40 to 50 times _______.