-I wonder ______．
-I'm not sure，but I hope so．It has been dry for two months．
A.if it will rain tomorrow
B.why it doesn't rain
C.when the rain will stop
D.how long the rain will last
_______ exciting news it is! All the Covid-19 patients in Wuhan have returned home.
A.What an B.What C.How D.How an
Look at the flowers on both sides of the streets, They_________last month.
A. were planted B. are planted C. are planting D. were planting
Dr. Smith will never leave his parents ________ he is sure both of them are taken good care of.
A.since B.though C.if D.unless
China has successfully prevented the Covid-19 from _______ through the country.
A.spread B.to spread C.spreading D.spreads
—Why are you so sleepy?
—Because I ______to prepare for the English test last night.
A.put up B.went up C.set up D.stayed up
