Though he failed, he tried _______ it again and again.A．to doB．doingC．doD．done.

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Though he failed, he tried _______ it again and again.

A．to do

B．doing

C．do

D．done.

答案

解析

略

举一反三

You"ll regret ______ those words. You may hurt her feelings.

A．say

B．to say

C．having said

D．to have said

题型：不详难度：| 查看答案

You can keep the book until you ______ .

A．have finished reading	B．finish to read
C．will finish reading	D．have finished to read

题型：不详难度：| 查看答案

We are looking forward to ______ another chance ______ it again.

A．be given, to try

B．give, to try .

C．giving, trying

D．having, to try

题型：不详难度：| 查看答案

Most of the students enjoy_____ stamps.

A．collect

B．to collect

C．collecting

D．collected

题型：不详难度：| 查看答案

Excuse me for _____ in without ______.

A．coming, asking

B．coming, being asked

C．to come, asking

D．to come, being asked

题型：不详难度：| 查看答案