[ Grammar ]
Animals often _______ body language to talk to one another.
A. use
B. used
C. have used
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Grammar › View
Look at the picture
A. There is four balls
B. There are four balls
C. There are two balls
D. There ir a ball
Subject-Verb Agreement › View
The Bicentennial, which Americans celebrated in 1976, (has, have) inspired a revival in the art of quilting.
A. Has
B. Have
The thieves stole the necklace ______ it was very valuable.
A. so
B. if
C. because
Grammar › View
We ___ closer as a team since we started this new project.
A. have grown
B. grow
C. grew
D. have been growing