—There ________ lots of plants here. But now I can’t see any.
—That’s the problem. To solve it, we ________ plant trees here.
A. used to be; are going to B. are used to be; will
C. used to are; are going to D. are used to; will
—There ________ lots of plants here. But now I can’t see any.
—That’s the problem. To solve it, we ________ plant trees here.
A. used to be; are going to B. are used to be; will
C. used to are; are going to D. are used to; will
A