_______ can the batteries (电池) keep these cool iPhones and iPads working- For about ten hours.

The president spoke at the meeting for nearly an hour without _______ his notes.

the bridge and _______a vast carpet ofgreen land stands the King’s college, the largest and most beautiful buildingin Cambridge

All Mrs Smith’s efforts to tidy the room were _____ because her grandson soon made a mess of it again.

Now that their parents are dead, the poor boy doesn’t know ________ the money they left