I admire my English teacher. I can remember very few occasions _____ she stoppedworking because of ill health.

_______ difficulty we meet with, we must finish it on time, because the opportunity is_______ valuable．

In England, people use Mr, Mrs or Ms with their first name.

Sean has formed the habit of jogging________ the tree-lined avenue for two hours every day

believed that high achievers are ambitious, hardworking, and work toward personal standards of excellence _____ materialrewards．