Question

Choose the best option to complete the sentences below:
I - Drivers __________ stop when the traffic lights are red.
II - She was driving so fast that she ______ stop in time.
III - Take an umbrella. It ______ rain later.
a) Should - couldn’t- can
b) Have to - mustn’t - can
c) Can - can’t - must
d) Must - couldn’t – may

Answer 1

d) must - couldn't - may.