These beautiful animals are endangered.We must them.( )
save
show
stop
catch
Many tourists visit Hainan around the Spring Festival,because it's _______ too cold _________ too hot.
both...and
not only...but also
neither...nor
一Jerry,can you give me a hand?
一Just a minute.I ___________ an e﹣mail.
have sent
am sending
was sending
一I have less homework than before!
一Me,too.Now,we have enough time __________ sports.
do
doing
to do
﹣ What are you going to be when you ____________?
一I want to be a doctor like Wu Mengchao.
grow up
turn up
get up
一How long can I keep these books?
一According to the library rules,you __________ return them within 7 days.
must
might
could