—Have you ever seen two leaves that are exactly the same?
—Never. Leaves differ ____ each other ____ size and shape.
A．from; in B．in; inC．in; from D．from; from
The only system I know ____ will help you remember what you have heard at a lecture is the system of keeping notes.
A. whatB. thatC. whereD. one
What difficulty will you have ____ people when you stay in a foreign country?
A. understandB. understandingC. to understandD. 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. MoreoverB. HoweverC. MeanwhileD. Otherwise
If the weather had been better, we could have had a football match. Bit it ____ all day.
A. rainedB. rainsC. has rainedD. had rained
