As you know ,we recently had a compaign for every worker to propose hit or her own idea.
As a result, we were able to select the best proposal and implement it throughout the past quarters.
The effect this proposal ____________ the sales of our new products was so significant that we are getting more positive about its prospects
1. a. had b. hving c. had on d. of having
threrefore, all employees _________ to freely express their ideas at any time in writing
2. a. advised b. are advised c. were advised d, have advised
However, we suggest that a department head's signature be required on the form.
As discussed at last week's tenants' meeting, we have decided to add a second swimming facility f or the health of our residents. To this end, part of the basement ______ renovated.
A. having to be
B. has had to be
C. has to have been
D. has to be
제가 생각하는 답은 c, c, d 입니다 답이유와 설명좀 부탁드립니다.
