帮我填下:请用所给动词的适当时态填空1 This is the third time that I ____(visit) the Science Museum.2 At present many scientists ____(make)a study of living things in the ocean.3--Is there anything wrong? --No, So far I___(have) no tro
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帮我填下:请用所给动词的适当时态填空1 This is the third time that I ____(visit) the Science Museum.2 At present many scientists ____(make)a study of living things in the ocean.3--Is there anything wrong? --No, So far I___(have) no tro
帮我填下:请用所给动词的适当时态填空
1 This is the third time that I ____(visit) the Science Museum.
2 At present many scientists ____(make)a study of living things in the ocean.
3--Is there anything wrong?
--No, So far I___(have) no trouble.
4 Don't worry. Your son___(come)back in a minute .
5 The Marathon Race____(become) one of the most popular sport events for ordinary people in the past few years.
不一定要全帮我解决,能解决几题是几题,谢拉
帮我填下:请用所给动词的适当时态填空1 This is the third time that I ____(visit) the Science Museum.2 At present many scientists ____(make)a study of living things in the ocean.3--Is there anything wrong? --No, So far I___(have) no tro
1 have visited
2 make
3 haven't
4 will come
5 has become
1. have visited
2. are making
3. have had
4. is coming
5. has become
yrwtr
1.have invited
2.are making
3. have had
4. will come
5. has become