The travelers wereready to enjoy the spectacular tidal waves when suddenly a thick fog came upand [obscured] the whole scene.

[单选题]The travelers wereready to enjoy the spectacular tidal waves when suddenly

[单选题]H．ardly ______ when the door suddenly closed.A． they had arrivedB． they arrivedC． did they arriveD． had they arrived

[单选题]When sometimes they cannot enjoy adequate sleep, the long sleepers might ( ).A． appear disturbedB． become energeticC． feel dissatisfiedD． be extremely depressed

[问答题]I was having a nap when suddenly the telephone rang.

[问答题]I was having a nap when suddenly the telephone rang.

[问答题]I was having a nap when suddenly the telephone rang.

[问答题]I was having a nap when suddenly the telephone rang.

[单选题]3． When I came into the room，he pretended ________ his homework．A． to doB． be doingC． doingD． to be doing

[单选题]I was almostasleep last night when I suddenly heard someone _____at the doo

[单选题]My father was ___ a book when I came into his study.A.seeingB.lookingC.read