The most obvious reason why computer-based testing is becoming increasingly popular is that it makes tests easier ______.
#90494
A
take
B
taking
C
to take
D
taken
推荐题目
He was busy writing a story, only _____once in a while to smoke a cigarette.
#92270
A
to stop
B
stopping
C
to have stopped
D
having stopped
The foreigner tried his best, but he still couldn't make his point _____.
#98272
A
understand
B
understanding
C
to understand
D
understood
 _________ their final medical check, the astronauts boarded their spacecraft. 
#94285
A
Received
B
Being received
C
To receive
D
Having received