词汇运用 （共15小题；每小题1分，满分15分）
A) 根据括号中所给的汉语写出单词，使句子意思完整正确。
小题1:The girl felt very ___________(紧张) when the teacher asked her questions.
小题2:You can go to any place you like. You are ___________(自由) now.
小题3:It’s a __________ (多云) day today and it’s going to rain.
小题4:The giant pandas are ________(面临) many serious problems in the wild now.
小题5:Last week, it kept raining _____________ (到处) in my hometown.
B) 根据句子意思，用括号中所给单词的适当形式填空。
小题6:I don’t know these ___________ (visit) names.
小题7:If it __________ (rain) tomorrow, I won’t go out.
小题8:The students are busy _______ (read) books.
小题9:Hurry up! There is little time ___________ (leave).
小题10:The 2016 Olympic Games ___________ (take) place in Rio de Janeiro, Brazil.
小题11:We got to the cinema late and missed the _____________(begin) of the film.
小题12:When my parrot is full, he sings __________ (happy).
小题13:We became very __________ (exciting) when we saw the model Eiffel Towel.
小题14:Many people don’t understand the ___________ (important) of the wetlands.
小题15:Drivers must be more careful on ___________ (fog) days.
sin20πt(V)，则（ ）
V