Mike is often heard________in his room.
A.sang B.to sing C.sing
—Have you seen a girl________skirt is red?
—Yes, she went to the library.
A.whose B.who C.whom
The silk shirt ________ very soft. I like it.
A.felt B.is feeling C.feels
He will ________on his journey to Beijing tomorrow.
A.send out B.set out C.set up
We students should do everything we can________ COVID-19(新型冠状病毒).
A.prevent B.to prevent C.preventing
—Can you tell me ________ last night?
—Yes. She felt tired, so she stayed at home all night.
A.why didn’t Helen come to the party
B.when Helen went to the party
C.where Helen was
