完成句子 (用合适的词组填空，使句子通顺完整。每空1分， 共20分)
(毫无疑问)________ ______ ______ _______ _______he is an excellent teacher.
The new president_______ ________ ________(当权) yesterday.
I’d like to buy you a meal _______ _________ (作为回报)for all your help.
You shouldn’t _________ __________(丧失信心) even you failed many times.
The bottle can ____________ __________ (充当)a container.
On hearing the sad news, the girl burst out crying.（替换句子）
="On" hearing the sad news, the girl ________ ________ ________.
His father went to Australia _______ ________ _______(为了寻找) gold.