My friend Jack was very sick with a strange fever; _____, he could neither eat nor sleep.[ ]

One way to speciesunder’ threat of extinction – whatever the cause – is to remove them to zoosand parks and breed them there．

The boy the teachers considered ______was caught _____in the exam, which surprised us very much. [ ]

he thought he was helping us with the work, he was actually in the way.

_____, I could not memorize the text