Question

—_____ do you go to the zoo with your brother?
—Three times a month.

A．How long

B．How often

C．How old

D．How much

Answer 1

B

解析試題分析：句意：你和你哥哥多久去一次動(dòng)物園？一個(gè)月三次。根據(jù)答語可知上句是提問頻率。A多久，問時(shí)間段，B多久一次，C多大了，問年齡，D多少，問價(jià)格。故選B.
考點(diǎn)：考查冠詞的用法。