When did your uncle arrive ____ China—He got to Guangzhou _____ the morning of the 16th of April.

It remains ________ whether thestudents will benefit from the monthly exams.

The weather is concerned with all of us because it________us so directly—what we wear，what we do，and even how we feel

Hurry up, Mike. You must get to the airport an hourbefore the plane _____.

spend the spring sneezing, take a look at yourplate Some foods _____ make allergies worse