It’s not _________ good idea to drive for four hours without _________ break.
Darwin counted 225 flowering plants, ______ he collected and brought home 193.
He came to my class every week, but his attitude _______he was not really interested in the subject.
Why didn't you tell me there was no meeting today? I all the way here through the heavy snow.
The old man, _______ abroad for twenty years , is on the way back to his motherland.
Zheng He’s first stop during the expedition was in _______ is a part of Vietnam today.