We are doing much better _____English ______our teacher’s help.

With the final examination ________, we are busy going over what we’ve learnt this term.[ ]

We’ll have to work extra hours, for there are still some problems ____________ ．[ ]

Malaysia Airline Flight MH370 seemed to have been _______to only a mystery after so long and hopeless a search.

My sister met him in the hospital yesterday afternoon, so he _________ your lecture.