F．irstly, we should read the topic c and organize our ideas. 77.

[主观题]我们每天应该读至少半小时的英语。We should read English for________ ________ ，half an hour every day．

[单选题]We have already covered the topic of network addresses. The first(71) in a block (in classes A,B,and C) defines the network address. In classes A,B,and C,if the hostid is all ls, the address is called a direct broadcast address. It is used by a (72)

[单选题]When we meet a（军舰）_____, we should lower national flagA．warshipB．boatC．container shipD．bulk carrier

[单选题]We can read such a passage ______.A．in a newspaper B.in a storybook C.in a picture book D.in a textbook

[单选题]We tried to [restrict]our conversation to arguments relevant to the topic.A

[单选题]We tried to [restrict]our conversation to arguments relevant to the topic.A

[单选题]We should consider the students’ request___the school library provide more books on popular science.A． that B. whenC． which D. where

[单选题]We should consider the students’ requestthe school library provide more books on popular science.A． thatB. whenC. which D. where

[主观题]As teachers we should concern ourselves 选择A．steachersweshouldconcernourselveswithwhatissaid,notwhatwethink________.A．)oughttobesaidB)mustsayC)havetobesaidD)needtosay

[单选题]After the engine is warned, we should（） the turning gear before starting up the engine.A . take inB . put inC . take outD . put u