Many people think any government's work should be evaluated ______ on citizens' happiness level.
#89331
A
based
B
to be based
C
basing
D
being based
推荐题目
The student _________ forward to going abroad for further study.
#98402
A
referred to looks
B
referred to look
C
refers to look
D
referring to look
He was busy writing a story , only _______ once in a while to smoke a cigarette.
#94052
A
to stop
B
stopping
C
to have stopped
D
having stopped