We’ll have a picnic in the park this Sunday ________ it rains or it’s very cold.
I'm going to Europe on vacation together with John if I ________ find the money.(2012·全国Ⅱ)
I________to my cousin's birthday party last night, but I was not available.
Eye doctors recommend that a child's first eye exam ________ at the age of six months old.
My mom suggests that we ________ eat out for a change this weekend.
—Do you think George has passed the driving test? —No.If so,he ________ his car to our college yesterday.