2022-08-27 04:47 回答问题

be believed to 表示看法后面的时态要跟实际。to think 一般现在时to be thinking 现在进行时根据句子上下文，正在考虑更符合意思

2022-08-27 03:35 回答问题

1, have sth done(by somebody) --sth is the object of the verb performed by somebody. 2, Oxford dictionary 有例句：Everyone clapped us when we went up to get our our prize. 跟 “我让人们为观众鼓掌（类似于：I made people clap the audience.）”一样用法。 所以have the audience clapped 只是把 audience当作 clap的object。 3, had somebody done sth --if someone had done sth. 据Longman dictionary举例： Had we known about it earlier, we could have warned people of the danger.