—Tina, is that our math teacher Mr. Wang?
—It ________ be Mr. Wang. He has gone to Beijing.
must
mustn’t
can’t
can
Look! The picnic is _______ Australia _______ Saturday. A. at; in B. in; on C. to; at
Let’s _______ to the park _______ Sunday, OK? A. go; on B. to go; on C. go; in
Scott often plays _________ guitar after ________ breakfast. A. the; / B. /; / C. a; the
What color is it? ---It’s ________ orange. A. an B. a C. /
Tom is from America. He is ________ American. A. a B. an C. the