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【单选题】
She was busy, or she _________ him more help. [ ]A.
had given
B.
would give
C.
could have given
D.
give
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举一反三
【单选题】Hurry up! They ______ for us now.
A.
Must waiting
B.
ought to wait
C.
must be waiting
D.
must have waited
【单选题】Hurry up! Our friends ______ for us now.
A.
wait
B.
are waiting
C.
will wait
D.
have waited
【简答题】He's left now, but productivity hasn't ______that much. A: carried on B; caught up C; picked up
【单选题】- What's up? You didn't pick up the phone just now. - I'm sorry that I dancing with music on, but it's done now.
A.
practised
B.
was practising
C.
am practising
D.
have practlised
【单选题】在两个部件之间添加配合约束的时候,哪一个部件会从先前的位置移动到满足装配关系的位置?( )
A.
都移动
B.
都不移动
C.
第一个被选择的部件
D.
第二个被选择的部件
相关题目：
【简答题】He's left now, but productivity hasn't ______that much. A: carried on B; caught up C; picked up