Which kind of animals has long legs and neck（脖子）

The plane is due to take off at 7:50 from the airport.—________ we fail to arrive there in time?—Try to take another flight then[ ]

The engine just won’t start. Something seems ______wrong with it.

–Is Lily your good friend–_________. We are only nodding acquaintances.

How did the lecture get along by Professor Zhang yesterday?— The audience was ______ by his inspiring speech.