He studied hard, __________ the exam.

_______ is expected, according to the online survey, is _______ the price of housing will not go up any more

ture reserve for white-flag dolphinswas set up in 1992, _______ boats have been prohibited from sailing around since then.

The problem_______at the meeting this morning.[ ]

Why doesn’t she make notes —She has no pen to use．She seems one． A．tohave forgotten to bring B．toforget to bring C．tohave forgotten bringing D．toforget bringing