Achieving a high degree of proficiency in English as a foreign language is not a mysterious without scientific basis.[A] process [B] practice [C] procedure [D] program
When____ help, one often says “Thank you. ” or “It’s kind of you. ”
Only after my friend came _____.
—Catherine, I have cleaned the room for you. —Thanks. You____ it, I could manage it myself.
The classroom is big enough ____, but we’ll have to move if we have more students.
—Can the project be finished as planned? —Sure, ____ it completed in time, we’ll work two more hours a day.