A. which
B. when
C. /
D. that
[单选题]The ratio of the work done by the machine_____the work done on it is called
Please _ the parcels by air at once.A. give offB. leave offC. send offD. put off
[单选题]She [determined]to leave the school at once.A.triedB.attemptedC.agreedD.dec
[单选题]We have received orders()US$1,000,000 since the new product was introduced to the market.A . amountforB . amounttoC . accountforD . amountingto
[单选题]They have done ______work these days.A.too muchB.much tooC.too manyD.many t
[单选题]David may ________ , but we must go at once.A.stay lately B.have stayed ver
Where is the morning paper? —I _______ it for you at once.A. will getB. gettingC
Each word can be used only once.1.[填空题](15选10)注意:只需填写选项字母(要大写!),不要输入选项单词!Directi
Each word can be used only once.Directions: Fill in the blanks in the following
[单选题]There is still an[immense] amount of work to be done.A.muchB.enormousC.litt