–What’s that noise?
–Oh, I forgot to tell you. The new machine ______.
A. was tested B. will be tested C. is being tested D. has been tested
--- My stomach hurts badly.
--- You ______ have eaten so many mangoes.
A. wouldn’t B. couldn’t C. shouldn’t D. mustn’t
It was not until _______ together for a couple of weeks ____ I found we had a lot in common.
A. we stayed, that B. did we stay, that
C. we stayed, when D. did we stay, when
--- Jack lost new mobile phone the other day.
--- ________? That’s his third one in just one month.
A. Had he B. Did he C. Does he D. Has he
It remains ________ whether he will be experienced enough to take over the business.
A. seen B. to be seen C. seeing D. to see
When first to the market, these products enjoyed great success.
A. introducing B. introduced C. to introduce D. being introduced
