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
Thank you for all your hard work last week. I don’t think we ______ it without you.
John, look at the time. ___________ you play the piano at such a late hour?
—May I smoke here ? —If you ____, choose a seat in the smoking section.
This cake is very sweet. You _____ a lot of sugar in it.
— The woman biologist stayed in Africa studying wild animals for 13 years before she returned. — Oh, dear ! She ______ a lot of difficulties !