You must wear strong shoes and socks ____ you climb the mountains. A.whatever B.wherever C.whenever
My brother gets up 6:00 the morning every day.
Bill plays basketball forhour every day.
We were swimming in the lake _______ suddenly the storm started.
The price of petrol(汽油) is not _______ that of last year, so some more people are planning to buy cars.
Everybody should study hard. No one can _______ us _______ a good future.