1 how did the accident come about?
what caused the accident?
what brought about the accdent
2 we spent two hours going through the park
3 please be quiet.
please keep silent/silence
4 this club is made up of 40 members
5.Everyone can answer the question.
the question is so easy that everyone can answer it.
6.What is three times eight?
7.electronic calculators are used for calculating.
8.Can you tell me the way to the Oriental Pearl TV Tower?
which is the way to the Oriental Pearl TV Tower
how can I get to the Oriental Pearl TV Tower