The first use of atomic weapons was in 1945, and their power _____ increased eno

题型：同步题难度：来源：

The first use of atomic weapons was in 1945, and their power _____ increased enormously ever since.

[ ]

A. is
B. was
C. has been
D. had been

答案

举一反三

The letter I have been looking forward to _______.

[ ]

A. arrive
B. has arrived
C. arriving
D. arrival

题型：河北省期中题难度：| 查看答案

He is the only one of the students who _____ a winner of scholarship for three years.

[ ]

A. is
B. are
C. have been
D. has been

题型：同步题难度：| 查看答案

— How are you today?
— Oh, I ___ as ill as l do now for a long time. [ ]
A. didn"t feel
B. haven"t felt
C. wasn"t feeling
D. don"t feel

题型：同步题难度：| 查看答案

— Do you think we should accept that offer?
— Yes, we should, for we ____ such bad luck up till now, and time ____ out.[ ]
A. have had; is running
B. had; is running
C. have; has been run
D. have had; has been run

题型：山东省期中题难度：| 查看答案

The number of students of this school ____ greatly in the past few years. [ ]
A. is increasing
B. has increased
C. are increasing
D. have increased

题型：同步题难度：| 查看答案