The environment will be much worse______everyone has a sense of protecting it．（ ）
| A． |
unless |
B． |
if |
C． |
so that |
―Could you please show me _______________？
-Sure；First of all you'd better make sure you've got everything you need.
| A． |
how can I make a Chinese lantern |
| B． |
how I can make a Chinese lantern |
| C． |
how could I make a Chinese lantern |
-It is reported that the First Flight Ceremony of Heze Mudan Airport was held on April 2nd，2021.
-Yes.Great changes ___________ in my hometown since I left home.
| A． |
have taken place |
B． |
were taken place |
| C． |
took place |
D． |
-Would you like to tell me something about Yuan Longping？
-He's called "father of hybrid rice" and he helped save ________ China __________ the world from hunger.
| A． |
not only；but also |
B． |
either；or |
| C． |
neither；nor |
D． |
-Is anything worth seeing in Xi'an？
-Yes.Don't ____________ the amazing Terracotta Army.
| A． |
offer |
B． |
miss |
C． |
share |
-I wonder if these are Jim's glasses.
-They ____________be his.He doesn't wear glasses.
| A． |
could |
B． |
must |
C． |
can't |