下列各组句子中词语解释有错误的一项是（ ）

My elder brother _____ serve in the army. He is now a policeman.

With more forests being destroyed, huge quantities of good earth each year

There is ______ “u” and ______ “s” in the word “bus”.

We’regoingto______withsomefriendsforapicnic.Wouldyouliketojoinus?