It seems cloudy, you’d better take an umbrella_____.
Do you have any difficulty ________?
Many people agree that ___ knowledge of English is a must in ____ international trade today.
—What is your plan for the holiday, Paul? —I’ll go on a trip to Yunnan Province with my family. —_____.
He always brings me a pretty gift ____ he comes to visit me.
The old couple _________ some money every month in case of an emergency.