To our surprise, we ________ enjoy an 8-day holiday in October 2020.
A.can B.should C.must D.need
Remember to avoid ________ your eyes, nose and mouth before washing your hands.
A.touch B.touched C.to touch D.touching
Anna's parents always encouraged her ________ questions while she was having remote (远程) lessons.
A.raise B.raising C.to raise D.raises
Most of Jeff’s best books ________ when he was sick and poor.
A.wrote B.would write C.had written D.were written
Don’t stay up too late, ________ you’ll find it hard to get up on time tomorrow.
A.and B.or C.but D.so
You are not allowed to take a bus _________ you wear a mask (口罩).
A.unless B.when C.if D.because
