问题
There _____________ more trees if we all take care of our environment.
A:a
B:an
C:the
D:/;
B:an
C:the
D:/;
正确答案是：
同类题型
Britain is only kilometers _______from France
__ go, atleast wait until the storm is over
______doesyourcousinusuallygotoworkonfoot—Hesaysit’sgoodforhishealth.
I failed in the examination last term and only then ____ the importance of studies.
______ is known to all，the Amber Room belongs to the Russians.