In order to____ a good knowledge of French, he gave up his favorite job and set off for France.
he is well again, he can go on with his English study.
Because of the snow , many parts of the countryside are only _____ by helicopter.
Wolves would starve if food was difficult, especially during the cold winter months.
Jane seems strange, I findhard to get along with her.
—Did you ring her last night? —Yes, I her, but she wasn’t at home.