When I got to the checkout counter, I realized I didn’t have enough money, so I kept ______ I really needed and left the rest.
| A．which | B．that | C．what | D．where |
The only system I know ____ will help you remember what you have heard at a lecture is the system of keeping notes.
| A．what | B．that | C．where | D．one |
What difficulty will you have ____ people when you stay in a foreign country?
| A．understand | B．understanding | C．to understand | D．understood |
_____ I always felt I would pass this monthly exam, I never thought I would get an A.
A. While B. Once C. As D. Because
The doctor will see you again next week. ____, you must rest as much as possible.
| A．Moreover | B．However | C．Meanwhile | D．Otherwise |
If the weather had been better, we could have had a football match. Bit it ____ all day.
| A．rained | B．rains | C．has rained | D．had rained |