Review: complete the sentences.
If it __________ (not rain) tomorrow, we _________ (go) hiking. He ________ (pass) the exam if he ______ (work) harder at it. If everyone _________ (obey) the traffic rules, the roads _________ (be) safer. It’s important for us ________ (know) about traffic rules. It’s good exercise ________ (ride) a bike to school.
doesn’t rain
will go
works
will pass
obeys
will be
to know
to ride
“主将从现”原则