问题

urn to the problem of water pollution , I’d like you to look at a study _______ in Australia in 2012.
A:having conducted
B:to be conducted
C:conducting
D:conducted;
B:to be conducted
C:conducting
D:conducted;
正确答案是:
同类题型
His jewelry shop is said ______ and he can’t help but_______ the fact.
he entered the police station, she recognizedthe man who ______ her at once
____are you staying in Ottawa–About two weeks.
_have been Tom that parked the car here, as he is the only one with a car
Take care! Accidents _________ happen along this part of the road.