用所给单词的适当形式填空。

l. Mr Brown _____ (go) to his office by bike every day.

2. Why not _____ (go) to the zoo by bus?

3. It ____ (take) about 15 minutes to walk.

4. There _____ (be) many deer in the forest now.

5. There must _____ (be) many sheep.

6. Kate is walking to her home ____ (quick).

第二职业现象在资本主义社会早已存在，但它不是资本主义社会特有的现象，而是市场经济的产物。只要劳动不能脱离“谋生”的手段，必然有第二职业的存在。这段说明第二职业是( )

A．一切社会都有的普遍现象

B．一种谋生的通用手段

C．在社会主义市场经济条件下仍然存在

D．资本家剥削劳动者的手段