I'm sure that they won't climb ________ the mountain if they can't keep going.
A.on B.through C.over D.across
When you walk ________ the street, you can't be too careful.
A.across B.through C.over D.for
The bird's singing came into my room ________ the window and woke me up in the early morning.
A.over B.past C.through D.across
It's ________ outside. We can hardly see things around us clearly.
A.cloudy B.sunny C.foggy D.snowy
________ fine weather it is! Let's go on a picnic!
A.What a B.What C.How D.How a
It must be ________ last night, because there are so many leaves on the street now.
A.cloudy B.snowy C.sunny D.windy
