Don’t get off the bus __________ it stops.
---- Is there __________ left in the fridge?---- Only some meat.
The model Sydney Opera House looks_______the real one in Australia.
---- The box is too heavy to carry. What’s in it?---- Oh, it is ___________ books.
TFBOYS’ songs________sweet and many of us like listening to them.
----I will visit the Great Wall this month. ---- ________________________.