---- What should we do before we use this machine?
---- I think we must read ________ first.
A. information B. instructions C. book
It’s very hard ___________the swimming pool.
| A．to swim across | B．to swim cross | C．swim across | D．swim cross |
The music __________, I want to listen again.
| A．sounds well | B．sounds good | C．sounds bad | D．is sound nice |
They will not start the work _______ their teacher comes back.
| A．while | B．until | C．as soon as | D．if |
There are some flowers on ___________ side of the road.
| A．each | B．every | C．both | D．all |
Simon is wearing clothes from __________.
| A．the 1980 | B．1980s | C．the 1980s | D．1980’s |