It is usually warm in my hometown in March,but it______be rather cold sometimes.

单项选择题______ is defined as the study of the relationship between language and mind.

单项选择题We've just moved in to a bigger house and there's lot to do. Let's（）it.

A.keep up with
B.do away with
C.get down to
D.look forward to

单项选择题Which of the following best explores American myth in the 20th century

单项选择题Tim will call me as soon as he ______ my package.

单项选择题One more week,______I will get everything ready.

单项选择题Gun control is a subject ______ Americans have argued for a long time.

单项选择题He had lost his temper and his health in the war and never found（）of them again.

A.neither
B.either
C.each
D.all

单项选择题It seems water______from this tap for some time. We'll have to take it apart to put it right.

单项选择题Austin和Searle的理论是任务型教学语研究一个十分重要的理论来源。Searle认为，语言交际单位不是单词或句子等语言单位，而是______。

单项选择题The experiment has（）the possibility of the existence of any life on that planet, but it does not mean there is no life on other planets.

A.found out
B.pointed out
C.ruled out
D.carried out